BORDEN, J.

This consolidated appeal arises out of an alleged automobile accident between the named plaintiff, Debra A. Gurliacci, and the named defendant, George Mayer. The plaintiff, a Stamford police officer, claimed that while on patrol in February, 1983, she suffered injuries to her back when Mayer, then the deputy chief of the Stamford police department, struck the rear of her unmarked police car as he was driving while intoxicated. Due to her injuries, the plaintiff was unable to continue working as a police officer, but continued to collect her full salary. The jury found in favor of the plaintiff and awarded her $485,000. The city of Stamford, which had intervened in the suit as a plaintiff pursuant to General Statutes 31-293 (a), sought to recover from the jury award, inter alia, two thirds of the amount that it had paid to the plaintiff as salary following her injury, asserting that such percentage represented workers' compensation payments. The trial court determined, however, that the salary was paid pursuant to a collective bargaining agreement that provided for unlimited sick leave in the place of workers' compensation. Mayer and Stamford appealed from the judgment of the trial court, and the plaintiff and Louis A. Gurliacci cross appealed. We transferred the appeals from the Appellate Court to ourselves pursuant to Practice Book 4023. We reverse, and order a new trial.

The relevant portions of the complex procedural history of this consolidated appeal are as follows. On February 2, 1983, the alleged accident between the plaintiff and Mayer occurred. On February 1, 1985, one day before the statute of limitations on the action passed, the plaintiff served her first complaint against Mayer and Stamford. On April 2, 1985, Mayer and Stamford moved to dismiss the action for lack of subject matter jurisdiction based on the fellow employee immunity provision of General Statutes (Rev. to 1983) 7-465. On May 10, 1985, the plaintiff requested permission of the court to amend her complaint. The plaintiff's request was granted over Mayer's objection. On May 30, 1985, the court, McGrath, J., denied the motion to dismiss for lack of subject matter jurisdiction.

Thereafter, Stamford moved to strike the third count of the plaintiff's amended complaint alleging liability of Stamford based on the negligence of its agent and servant Mayer, and to strike the sixth count alleging liability of Stamford to Louis Gurliacci for loss of consortium. The court, McGrath, J., granted the motion to strike, thereby eliminating Stamford as a defendant.

Mayer moved for summary judgment on the fourth and fifth counts of the plaintiff's complaint, relating to Louis Gurliacci's claim against Mayer for loss of consortium. The court, Cioffi, J., granted the motion for summary judgment.

Mayer then moved to amend his special defenses to include a claim that the plaintiff's amended complaint was barred by the statute of limitations, General Statutes 52-584. The court, Lewis, J., allowed the amendment over the plaintiff's objection. Mayer then moved for summary judgment on the first two counts of the plaintiff's complaint, claiming that they were barred by fellow employee immunity and exclusivity of remedy provided by the Workers' Compensation Act. The court, Lewis, J., denied the motion for summary judgment, and thereafter granted the plaintiff's motion to strike Mayer's special defense relating to the expiration of the statute of limitations.

On March 21, 1989, Stamford filed a motion to intervene as a plaintiff pursuant to General Statutes 31-293 (a), claiming that it was not barred by the statutory thirty-day requirement for intervention because the plaintiff had never served it with statutory notice. The court, Cioffi, J., granted the motion to intervene. The plaintiff thereafter moved to dismiss Stamford's intervening complaint, and the court denied the motion.

Eventually, the case proceeded to trial. The court, Lewis, J., bifurcated the proceedings, with the issues of liability and damages and the issue of the exclusivity of the Workers' Compensation Act tried separately. The jury determined that Mayer was negligent and awarded damages to the plaintiff in the sum of $485,000. The court denied Mayer's motion to set aside the verdict. Thereafter, Stamford moved for apportionment of damages, and the court granted the motion in part.

The jury could reasonably have found the following facts. On February 2, 1983, at approximately 1:30 a.m., the plaintiff, a Stamford police officer, was on patrol in an unmarked police car. As she was driving south on Glenbrook Road, the plaintiff noticed that the car behind her was driving very close to her, flashing its high beams, and then retreating. After this had occurred numerous times, she made a left turn onto Ely Place in order to allow the car to pass and to determine why the car was following her. The other car likewise turned onto Ely Place, and hit the rear of the plaintiff's car causing her to be thrown around the inside of her car.

The plaintiff exited her car and approached the other car. At that time, she learned that the other driver was Mayer, the deputy chief of police of Stamford, who was also driving an unmarked police car. Mayer was intoxicated and abusive, having consumed four to six scotches with water in the preceding four to six hours. Mayer claimed that he had been engaged in surveillance of an organized crime figure driving a gold Cadillac, and that he was trying to locate the Cadillac when the accident occurred.

The plaintiff summoned other officers to the scene. Those officers filed reports describing Mayer as intoxicated and abusive to the plaintiff and to them. At that time, the plaintiff reported no injuries, and finished her shift.

The next day, the plaintiff was sore and suffering from a stiff neck and pain in her shoulder blades. Upon arriving at work, she reported her injuries to the police department and went to Stamford Hospital for medical attention. Also at that time, the plaintiff examined the rear bumper of her car and noticed slight damage, which she reported to the police department.

The plaintiff intermittently missed work for one and one-half years as a result of neck and back pain. The jury also could have found that the plaintiff has been totally incapacitated from working as a police officer since July, 1984. From 1983 to 1986, the plaintiff was under the care of numerous doctors for treatment of her neck and back injuries. Since the accident, the plaintiff has been admitted to Stamford Hospital and St. Raphael's Hospital, and has undergone extensive medical treatment and surgery for a herniated disk. She is presently suffering from a disability of her back, and, according to medical testimony, may never return to police work.

I

MAYER'S APPEAL

On his appeal, Mayer claims that the court improperly: (1) refused to allow evidence of the plaintiff's continued receipt of full pay as evidence of malingering; (2) charged the jury that fellow employee immunity under General Statutes 7-465 required a separate element of "capability"; (3) struck his special defense based upon the statute of limitations; General Statutes 52-584; (4) denied his motion to dismiss based upon lack of subject matter jurisdiction; and (5) refused to allow follow-up questions to a witness after questioning by the jurors. Because we agree with Mayer as to his first and second claims as stated above, a new trial is required.

A

We first consider Mayer's claim that the court improperly denied his motion to dismiss the plaintiff's original complaint for lack of subject matter jurisdiction. This claim raises the issue of whether a motion to dismiss is the correct procedural vehicle with which to challenge a complaint that, on its face, alleges a cause of action falling under the fellow employee immunity rule. General Statutes (Rev. to 1983) 7-465 provides that "if the employee . . . has a right to benefits or compensation under chapter 568 [the Workers' Compensation Act] by reason of such injury . . . caused by the negligence or wrong of a fellow employee while both employees are engaged in the scope of their employment for such municipality, such employee . . . shall have no cause of action against such fellow employee to recover damages for such injury or death unless such wrong was wilful and malicious." (Emphasis added.) The plaintiff's original complaint, dated February 2, 1985, alleged only that Mayer "was operating an automobile owned by the defendant, the city of Stamford," and that, at all times relevant, Mayer "was the servant, agent and/or employee of the City of Stamford." A reasonable reading of that complaint discloses no allegations asserting that Mayer had been acting either outside the scope of his employment or wilfully or maliciously.

Mayer claims that the language of 7-465 deprived the trial court of subject matter jurisdiction because the allegations of the plaintiff's complaint alleged a cause of action in negligence between fellow municipal employees. Therefore, Mayer argues, the court was required to grant the motion to dismiss. We disagree.

"`Subject matter jurisdiction is the power of the court to hear and determine cases of the general class to which the proceedings in question belong.'" LeConche v. Elligers, 215 Conn. 701, 709, 579 A.2d 1 (1990), quoting Shea v. First Federal Savings Loan Assn. of New Haven, 184 Conn. 285, 288, 439 A.2d 997 (1981). We begin with the premise that the Superior Court has subject matter jurisdiction over negligence suits between fellow employees where the injury arose when the employee was acting outside the scope of employment or wilfully or maliciously. General Statutes 7-465. The question, therefore, is whether the failure of the plaintiff to allege sufficient facts to fall within either of these two exceptions deprived the court of subject matter jurisdiction, so that a motion to dismiss was the proper procedural vehicle, or whether such a pleading failure merely deprived the complaint of a legally sufficient cause of action, so that a motion to strike was the proper procedural vehicle. "That determination must be informed by the established principle that every presumption is to be indulged in favor of jurisdiction." LeConche v. Elligers, supra, 709-10.

Our case law demonstrates that parties have employed and we have reviewed both motions to dismiss and motions to strike as procedures by which to challenge a complaint on the grounds that a cause of action falling under the fellow employee immunity rule was properly relegated to the workers' compensation commission. Compare McKinley v. Musshorn, 185 Conn. 616, 441 A.2d 600 (1981) (motion to dismiss), and Pallanck v. Donovan, 105 Conn. 591, 136 A. 471 (1927) (plea in abatement), with Edmundson v. Rivera, 169 Conn. 630, 363 A.2d 1031 (1975) (demurrer to complaint), and Hope v. Cavallo, 163 Conn. 576, 316 A.2d 407 (1972) (demurrer for failure to state cause of action). Furthermore, in those cases where a motion to dismiss for lack of subject matter jurisdiction was used, the parties did not explicitly raise the issue of the propriety of the procedural posture. See, e.g., McKinley v. Musshorn, supra. We do not read our case law, therefore, as conclusively deciding that such a claim is subject matter jurisdictional.

Mayer argues that the court lacked subject matter jurisdiction because "[t]he Workers' Compensation Commission has exclusive jurisdiction over intraworkplace claims, unless an exception is satisfied." Mayer overlooks, however, the fact that the exclusivity of the workers' compensation commission is not absolute, because 7-465 provides that a municipal employee has a cause of action for negligence against a fellow employee for injuries occurring while that employee was acting (1) outside the scope of employment or (2) wilfully and maliciously. Mayer does not dispute that, had the plaintiff's original complaint alleged either exception, the case would have been properly before the trial court.

Therefore, the fact that the plaintiff's complaint failed to allege facts that would have removed it from the operation of the fellow employee immunity rule merely reflects that the complaint failed to state a legally sufficient cause of action. Practice Book 152. We have previously held that if a "pleading . . . on its face is legally insufficient, although facts may indeed exist which, if properly pleaded, would establish a cause of action upon which relief could be granted," a motion to strike is required. Baskin's Appeal from Probate, 194 Conn. 635, 640, 484 A.2d 934 (1984); see also Practice Book 152. A motion to dismiss, by contrast, "properly attacks the jurisdiction of the court, essentially asserting that the plaintiff cannot as a matter of law and fact state a cause of action that should be heard by the court." (Emphasis in original.) Baskin's Appeal from Probate, supra. In this case, Mayer's motion in effect challenged the failure of the plaintiff's original complaint to invoke the statutory exceptions to the fellow employee immunity rule. Because this challenge was to the legal sufficiency of the complaint, Mayer's motion to dismiss was improper.

An examination of the result of Mayer's argument further supports our conclusion. Interpreting the language of 7-465 as subject matter jurisdictional, taken to its logical conclusion, would require a trial court, after trial, to dismiss for lack of subject matter jurisdiction a complaint that at the outset properly alleged an exception to the fellow employee immunity rule, if the factfinder ultimately concluded that the defendant employee was neither (1) acting outside the scope of his employment or (2) acting wantonly or maliciously. Thus, the court would be compelled to conclude that it had no subject matter jurisdiction over the case that it had tried solely because the plaintiff failed to establish an essential element of his cause of action. We decline to adopt such a bizarre interpretation of 7-465.

Because of our determination that the plaintiff's complaint was within the trial court's subject matter jurisdiction, albeit subject to a motion to strike for failure to state a legally sufficient claim, we now determine whether the trial court properly considered the plaintiff's motion to amend the complaint before ruling on the motion to dismiss. We conclude that the trial court should not have allowed the amendment before ruling on the motion to dismiss, but we determine that this was harmless in light of our conclusion that the defect in the plaintiff's original complaint was not jurisdictional in nature.

It is axiomatic that once the issue of subject matter jurisdiction is raised, it must be immediately acted upon by the court. Statewide Grievance Committee v. Rozbicki, 211 Conn. 232, 245, 558 A.2d 986 (1989); Cahill v. Board of Education, 198 Conn. 229, 238, 502 A.2d 410 (1985). In this case, the trial court allowed the plaintiff to amend her complaint prior to ruling on the motion to dismiss. By considering the motion to amend prior to ruling on the challenge to the court's subject matter jurisdiction, the court acted inconsistently with the rule that, as soon as the jurisdiction of the court to decide an issue is called into question, all other action in the case must come to a halt until such a determination is made. Statewide Grievance Committee v. Rozbicki, supra. This action of the trial court was harmless, however, because, even had the motion to dismiss been heard prior to the amendment of the complaint, it should have been denied. B

We next consider Mayer's claim that the trial court improperly struck his special defense that the plaintiff's amendment of her complaint was barred by the two year negligence statute of limitations set forth in General Statutes 52-584. We disagree.

The alleged accident occurred on February 2, 1983. On February 1, 1985, the plaintiff's first complaint was served on Mayer. This complaint alleged that Mayer was acting negligently in operating his automobile while intoxicated, thereby injuring the plaintiff. After the limitations period had passed, the court allowed the plaintiff to amend her complaint to add the allegations that Mayer was acting either wilfully, wantonly and maliciously, or outside the scope of his employment.

Mayer raised the special defense that the amended complaint was barred by the statute of limitations because it stated a new cause of action that did not relate back to the original complaint. The court, Lewis, J., granted the plaintiff's motion to strike this defense. The parties agree that if the amended complaint did not relate back to the original complaint, the plaintiff's ultimate cause of action was barred by the statute of limitations. Sharp v. Mitchell, 209 Conn. 59, 71-72, 546 A.2d 846 (1988). We conclude that the amendment related back and that, therefore, the court properly granted the motion to strike the special defense. Giglio v. Connecticut Light Power Co., 180 Conn. 230, 240, 429 A.2d 486 (1980).

"`A cause of action is that single group of facts which is claimed to have brought about an unlawful injury to the plaintiff and which entitles the plaintiff to relief . . . . "A right of action at law arises from the existence of a primary right in the plaintiff, and an invasion of that right by some delict on the part of the defendant. The facts which establish the existence of that right and that delict constitute the cause of action." Pavelka v. St. Albert Society, 82 Conn. 146, 147, 72 A. 725. A change in, or an addition to, a ground of negligence or an act of negligence arising out of the single group of facts which was originally claimed to have brought about the unlawful injury to the plaintiff does not change the cause of action. It is proper to amplify or expand what has already been alleged in support of a cause of action, provided the identity of the cause of action remains substantially the same, but where an entirely new and different factual situation is presented, a new and different cause of action is stated . . . ." (Citations omitted.) Sharp v. Mitchell, supra, 71-72, quoting Gallo v. G. Fox Co., 148 Conn. 327, 330, 170 A.2d 724 (1961).

We have previously recognized that our relation back doctrine "is akin to rule 15(c) of the Federal Rules of Civil Procedure, which provides in pertinent part: `(c) RELATION BACK OF AMENDMENTS. Whenever the claim or defense asserted in the amended pleading arose out of the conduct, transaction or occurrence set forth or attempted to be set forth in the original pleading, the amendment relates back to the date of the original pleading.'" Giglio v. Connecticut Light Power Co., supra, 239-40; see also Sharp v. Mitchell, supra, 72. The policy behind rule 15(c) is that a party, once notified of litigation based upon a particular transaction or occurrence, has been provided with all the notice that statutes of limitations are intended to afford. 3 J. Moore, Federal Practice (2d Ed.) 15.15 [3]; see Sharp v. Mitchell, supra; Giglio v. Connecticut Light Power Co., supra, 240. Because rule 15 provides that an amendment relates back where the original complaint has given the party fair notice that a claim is being asserted stemming from a particular transaction or occurrence, the objectives of our statute of limitations, namely, to protect parties from having to defend against stale claims, is fully served. C. Wright, Law of Federal Courts (2d Ed. 1970) p. 276; Sharp v. Michell, supra; Giglio v. Connecticut Light Power Co., supra.

Mayer argues that "the change of focus from actions within the scope of employment to actions outside the scope of employment is of such a magnitude as to preclude a relation back for statute of limitations purposes." In support of this assertion, Mayer primarily relies on Sharp v. Mitchell, supra.

In Sharp v. Mitchell, supra, 72-73, the plaintiffs, in their first complaint, brought a wrongful death action against the defendant based on negligent supervision. The plaintiffs subsequently amended the complaint to allege that the defendant had negligently designed and constructed the underground storage area where their decedents suffocated. Id., 73. The court held that "[t]hese complaints involve two different sets of circumstances and depend on different facts to prove or disprove the allegations of a different basis of liability . . . . The defendants did not have fair notice of the claim of negligent construction and design of the under ground storage area when the original complaint merely alleged that [the defendant] was negligent in ordering the employees to enter the area." Id.

The amendment that occurred in this case is distinguishable from that in Sharp v. Mitchell, supra. In Sharp, the change in the nature of the negligence action from one of negligent supervision to one of negligent construction was dramatic because the defendant would have been required to gather different facts, evidence and witnesses to defend the amended claim. In this case, however, the plaintiff's amendment reiterated the negligence claim based on Mayer's operation of a motor vehicle, but added that Mayer was acting either wilfully, wantonly, and maliciously or outside the scope of his employment. The new allegations did not inject "two different sets of circumstances and depend on different facts"; Sharp v. Mitchell, supra, 73; but rather amplified and expanded upon the previous allegations by setting forth alternate theories of liability. The fact that the new allegations had the potential effect of taking the claim outside the operation of the fellow employee immunity rule does not negate "the identity of the cause of action." Gallo v. G. Fox Co., supra. Mayer had adequate notice that a claim was being asserted against him arising out of the alleged motor vehicle accident.

C

We now turn to Mayer's claim that the court improperly instructed the jury that, in order for the jury to determine that Mayer was acting in the scope of his employment at the time of the alleged accident, it had to find that he was: (1) "in fact actively engaged in some service for his employer, the Stamford Police Department"; and (2) capable of being so engaged. Mayer argues that the trial court improperly imposed a "capability" requirement on the issue of whether one is engaged in the scope of his employment. We agree.

The plaintiff was required to prove that Mayer was acting outside the scope of his employment in order to avoid the operation of the fellow employee immunity rule of 7-465. The challenged instruction cannot be considered, however, solely as it relates to the fellow employee immunity rule. Indeed, besides the fellow employee immunity rule, 7-465 also uses the term, "scope of employment," regarding workers' compensation and indemnification for municipal employees. Therefore, because we do not ordinarily read the same term as having different meanings within the same statute; In re Juvenile Appeal (85-AR), 195 Conn. 303, 324, 488 A.2d 778 (1985); the propriety of the imposition of a "capability" prong on the determination of whether one is engaged in the "scope of employment" for the purposes of evaluating a claim pursuant to the fellow employee immunity rule will likewise affect the evaluation of whether an employee can be indemnified by the municipality or recover workers' compensation for injuries.

Mayer does not challenge the first prong of the instruction, requiring the jury to find that he "was engaged in the immediate and actual performance of a public duty imposed by law." Mayer does challenge the applicability of the second prong, requiring that the jury also find that he was "capable" of being so engaged. This language appears to have been drawn from 1A A. Larson, Workmen's Compensation Law 34, entitled "INTOXICATION." Section 34 provides, in relevant part, that "[v]oluntary intoxication which renders an employee incapable of performing his work is a departure from the course of employment." While Larson's statement of the law initially appears to support the two-prong instruction given to the jury, a closer reading demonstrates that it is merely a broad introductory principle later narrowed in the chapter.

Larson's discussion simply notes that capability to engage in one's employment is an element to be considered in determining whether an employee has, by virtue of his voluntary intoxication, abandoned his employment. 1A A. Larson, supra, 34.21. Considering an employee's capability in this limited context does not require, however, that capability to engage must be shown in order for a jury to find that an employee acted within the scope of his employment. Furthermore, the cases cited by Larson indicate that the intoxication of an employee at the time he suffers his injury is merely one consideration in the determination of whether the injury occurred during the course of his employment, and is not an additional analytical requirement. See, e.g., Embree v. Industrial Commission, 21 Ariz. App. 411, 413, 520 P.2d 324 (1974) (test of whether employee was capable of properly performing his duties based upon intoxication was too stringent); County of Cook v. Industrial Commission, 177 Ill. App.3d 264, 270, 532 N.E.2d 280 (1988) ("even if an employee's intoxicated condition is a contributing cause of his injury, if the employee is not incapacitated from following his occupation, his recovery of compensation will not be defeated"); Steffes v. 93 Leasing Co., 177 Mont. 83, 90-91, 580 P.2d 450 (1978) (claim that the plaintiff was so intoxicated that he was incapable of performing rejected where the plaintiff was still acting within scope of employment).

Larson's discussion and these cases indicate that an employee's intoxication will not render his conduct outside the scope of employment unless his intoxication is so severe that it incapacitates him from performing his work, as opposed to performing it in an improper manner. Whether the intoxication has reached that level is, of course, a factual question in any given case. Before that question is submitted to the jury, however, the trial court must be satisfied that there is sufficient evidence for such a factual finding. We leave those determinations in this case to the court and jury upon the remand.

An examination of the challenged instruction in other contexts buttresses our conclusion that the intent of the legislature was not to impose a separate capability test under General Statutes 7-465. The instruction effectively could decrease the level of responsibility imposed on municipalities under 7-465, because a municipality arguably would be able to escape indemnification or workers' compensation liability payments by claiming that the employee was "incapable" of performing despite the fact that the employee was otherwise acting within the scope of his employment.

An assertion of employee "incapability" would not be limited to a claim of intoxication. A municipality could defend an indemnification claim by an injured third party by claiming that a municipal employee, who had not slept in eighteen hours, was thereby incapable of driving, despite the fact that the employee was otherwise acting in the course of the municipality's business. Also, a municipality could seek to avoid a workers' compensation claim by claiming that the employee, who lacked the physical strength to perform a certain task, was incapable of performing and, therefore, not within the scope of his employment. We do not believe that 7-465 contemplates scenarios such as these, and we decline to interpret it so as to permit them.

The plaintiff argues that, even if the instruction was improper, any error was harmless. The plaintiff asserts that the instruction placed a higher burden of proof upon her because she was required to prove not only that the defendant was acting outside the scope of his employment, but also that he was incapable of so acting. On the contrary, the "capability" prong provided the plaintiff with an alternative method of taking her claim outside the operation of the fellow employee immunity rule based upon the defendant's consumption of alcohol. The plaintiff's burden was reduced by the instruction because the jury could have determined that the defendant was incapable of performing police work because he had been drinking, despite the fact that it may have also found that he actually was engaged in surveillance at the time of the alleged accident. Thus, the trial court's instruction improperly decreased the plaintiff's burden of proof. This improper instruction went to the heart of the case, and requires a new trial.

D

We next address Mayer's claim that the trial court improperly excluded evidence of the plaintiff's continued receipt of full pay since the date of the alleged accident. Mayer offered the evidence for the limited purpose of showing that the plaintiff's absence from work was not the result of disability but that the plaintiff was a malingerer who was motivated by her financial situation to remain out of work. The court ruled that it had no discretion to permit the evidence because of the collateral source rule. We agree with Mayer that the collateral source rule did not foreclose a discretionary ruling on the proffered evidence. We leave the exercise of that discretion to the trial court on the remand.

Pursuant to a collective bargaining agreement with the Stamford police department, the plaintiff had been receiving her full salary and benefits since the date of the alleged accident. During that time, the plaintiff treated that salary as tax free income, thereby receiving increased earnings because no taxes were deducted. During trial, Mayer attempted to impeach the plaintiff's credibility and to establish that she had a motive for remaining out of work for the five year period by showing that she was receiving more money by not working than she had earned while actively employed.

The trial court sustained the plaintiff's objection to the evidence. The court believed that it had no discretion to determine whether to allow the evidence because the collateral source rule was an absolute bar to its admission.

The collateral source rule provides that "`a defendant is not entitled to be relieved from paying any part of the compensation due for injuries proximately resulting from his act where payment [for such injuries or damages] comes from a collateral source, wholly independent of him.' Lashin v. Corcoran, 146 Conn. 512, 515, 152 A.2d 639 (1959) . . . ." (Citation omitted.) Rametta v. Stella, 214 Conn. 484, 489, 572 A.2d 978 (1990). "`The basis of our well-established collateral source rule is that a wrongdoer shall not benefit from a windfall from an outside source. That rule is applicable . . . in any tort case.' United Aircraft Corporation v. International Assn. of Machinists, 161 Conn. 79, 101-102, 285 A.2d 330 (1971), cert. denied, 404 U.S. 1016, 92 S.Ct. 675, 30 L.Ed.2d 663 (1972)." Id., 489-90. We have not addressed, however, whether evidence that a plaintiff has received income from a collateral source is nonetheless admissible for the purpose of showing the plaintiffs malingering where there is other corroborative evidence of malingering.

We do not decide whether under the facts of this case the evidence in question should have been admitted. That determination is to be made by the trial court on remand, after exercising its discretionary function of weighing the probative value of the evidence against its potential prejudicial effect. Nor do we decide the full scope of exceptions to the collateral source rule.

Our sole concern here is whether the trial court had the discretion to permit Mayer to introduce evidence that the plaintiff continued to receive her full salary and benefits for the period preceding trial, where Mayer introduced corroborative evidence that the plaintiff had not attempted to find other employment or to pursue occupational rehabilitation or special placement, and that the plaintiff was performing activities alleged to have been beyond her capabilities, as demonstrated by a videotape. We conclude that the trial court did have that discretion, and that the court's failure to exercise that discretion was improper. See State v. Martin, 201 Conn. 74, 88, 513 A.2d 116 (1986).

We conclude that on the facts of this case the proper standard for the "malingering" exception to the collateral source rule is that applied by the Massachusetts courts. See Corsetti v. Stone Co., 396 Mass. 1, 16-18, 483 N.E.2d 793 (1985); McElwain v. Capotosto, 332 Mass. 1, 2-3, 122 N.E.2d 901 (1954). That standard gives the court discretion to admit evidence of collateral income in order to show malingering if there is corroborative evidence and a proper limiting instruction is given. Therefore, the trial court should have exercised discretion, based upon the corroborative evidence presented, to determine whether the probative value of the proffered evidence outweighed its prejudicial effect. See Corsetti v. Stone Co., supra, 17. Additionally, if the trial court on remand determines that the collateral income evidence is admissible, it should provide a limiting instruction to the jury not to consider the collateral income evidence in its calculation of any damages to be awarded to the plaintiff. Id., 21.

E

Mayer finally claims that the trial court improperly refused to allow follow-up questions of a witness, Officer Robert Harrington, after the jury was permitted to submit questions to him pursuant to an experimental program. We disagree.

Harrington, an equipment mechanic with the Stamford police department, examined the vehicles of the plaintiff and Mayer the day after the alleged accident occurred, and testified that he saw no damage to either vehicle. Following his cross-examination, the court asked Harrington two questions that had been submitted by the jury: (1) "In the incident how did it get to the police garage by 9 a.m. that morning?" Harrington answered "I don't know"; and (2) "Could a car traveling at ten miles an hour be hit by one going fifteen miles an hour or possibly a little faster and not show any visible damage because they were both heading in the same direction?" Harrington answered "[t]hat I really couldn't say." The court refused Mayer's request for follow-up questions. Mayer excepted to this ruling.

The trial court implemented a procedure whereby jurors, at the completion of examination by counsel, were permitted to retire to the jury room in order to formulate questions for submission to the witnesses by the court. The court reviewed the questions with counsel outside the presence of the jury, and, if there were no objections, asked the questions of the witness. We have recently held that the trial court, in its discretion, may properly implement this procedure. See Spitzer v. Haimes Co., 217 Conn. 532, 549, 587 A.2d 105 (1991). Contrary to the facts in Spitzer, where a standing objection to the procedure was placed upon the record; id., 537-38; in this trial the parties assented to the procedure of jurors asking questions. On appeal, Mayer claims only that the court improperly refused to allow him to ask a follow-up question of Harrington.

The trial court had instructed counsel that they would be permitted to ask follow-up questions of the witnesses after the questions by the jurors were answered. Because Harrington was a witness for Mayer, such follow-up questions would have constituted, in effect, redirect examination. "[A] witness is permitted on redirect examination to explain or clarify any relevant matters in his testimony which may have been weakened or obscured by his cross-examination." State v. Conrod, 198 Conn. 592, 596, 504 A.2d 494 (1986). Furthermore, "[t]he extent and scope of redirect examination . . . may be limited within the discretion of the trial judge." Id.

In this case, the trial court did not abuse its discretion in refusing to allow redirect examination on the questions posed by the jurors because Harrington had already stated that he did not know the answers to them. It was reasonable, therefore, for the court to conclude that Harrington would be unable to provide relevant information on redirect or to clarify his testimony. See State v. Conrod, supra.

II

LOUIS GURLIACCI'S CROSS APPEAL

In his cross appeal, Louis Gurliacci claims that the trial court improperly granted Mayer's motion for summary judgment regarding his claim of loss of consortium. The facts concerning this claim are undisputed. In October, 1981, the plaintiff and Louis Gurliacci became engaged to be married, and in February, 1982, they began to cohabit. On February 2, 1983, the alleged accident occurred. On September 2, 1983, they were married and remain married. Louis Gurliacci claims that the trial court improperly granted Mayer's motion for summary judgment because "[n]o Connecticut case on point exists as to [the] proposition that a husband's entire claim for loss of consortium is defeated simply because his marriage to the injured party occurs after the injury." We disagree.

"Our standard of review of a trial court's decision to grant a motion for summary judgment is well established. Practice Book 384 provides that summary judgment `shall be rendered forthwith if the pleadings, affidavits and any other proof submitted show that there is no genuine issue as to any material fact and that the moving party is entitled to judgment as a matter of law.'" Zichichi v. Middlesex Memorial Hospital, 204 Conn. 399, 402, 528 A.2d 805 (1987); see also Connell v. Colwell, 214 Conn. 242, 246, 571 A.2d 116 (1990). The issue, therefore, is whether the trial court properly determined that judgment for Mayer was required as a matter of law because Louis Gurliacci was not married to the plaintiff at the time of the actionable injury to the plaintiff. Zichichi v. Middlesex Memorial Hospital, supra.

In Hopson v. St. Mary's Hospital, 176 Conn. 485, 493, 408 A.2d 260 (1979), this court abolished the rule set forth in Marri v. Stamford Street R. Co., 84 Conn. 9, 78 A. 582 (1911), that disallowed a married person whose spouse had been injured from bringing a claim for loss of consortium. The court in Hopson, defined "consortium" as "encompassing the services of the wife, the financial support of the husband, and the variety of intangible relations which exist between spouses living together in marriage." (Emphasis added.) Hopson v. St. Mary's Hospital, supra, 487. The "intangible" factors have been defined as "`constellation of companionship, dependence, reliance, affection, sharing and aid which are legally recognizable, protected rights arising out of the civil contract of marriage.'" (Emphasis added.) Id. We concluded that "[s]hould the victim be married, it follows that the spouse may suffer personal and compensable, though not physical, injuries as a direct result of the defendant's negligence and that such injuries should not go uncompensated." (Emphasis added.) Id., 493.

The language and reasoning in Hopson focus on the marital relationship as it existed on the date of the injury. There is no indication in Hopson or later Connecticut decisions to support Louis Gurliacci's claim that a person who is not married to the victim of the tort at the time of the injury may, upon marriage, bring a claim for loss of consortium. To the contrary, the language of Hopson, providing that "should the victim be married"; (emphasis added) id.; implicitly limits such actions to situations where the victim was married at the time of the alleged incident.

Furthermore, virtually all of the jurisdictions that have considered the question take the position that "[a]n action for loss of consortium cannot be maintained unless the plaintiff was married to the injured person at the time of the actionable conduct." Briggs v. Butterfield, 104 App. Div.2d 626, 479 N.Y.S.2d 758 (1984).

The rationale behind this requirement is that "the formal marriage relation forms the necessary touchstone to determine the strength of commitment between the two individuals which gives rise to the existence of consortium between them in the first instance." Schroeder v. Boeing Commercial Airplane Co., 712 F. Sup. 39, 41 (D.N.J. 1989) (applying the law of New Jersey). We agree with this rationale, and conclude, consistent with our prior case law, that a cause of action for loss of consortium does not exist where the injury occurred prior to the marriage of the parties.

III

STAMFORD'S APPEAL

We turn now to the claims of the intervening plaintiff, Stamford, on its appeal, and to a related claim of the plaintiff, Debra Gurliacci, on her cross appeal. Stamford claims that the trial court improperly: (1) concluded that the plaintiff was not required to reimburse Stamford for that portion of her salary which it claims was paid as temporary total disability because the court concluded that the plaintiff received her salary pursuant to a collective bargaining agreement that superseded the provisions of the Workers' Compensation Act; (2) applied General Statutes 31-308 to its claim for reimbursement of a specific award; (3) apportioned the damage award pursuant to General Statutes 31-293 (a); and (4) commingled the legal positions of Stamford and Mayer. The plaintiff claims that Stamford waived any rights it had to recover any future specific award to her. We agree with Stamford as to its first and third claims, and we disagree with the plaintiff on her claim.

The relevant factual and procedural history of these issues is as follows. After the jury awarded the plaintiff $485,000 in damages, Stamford moved for apportionment in order to recover sums alleged to have been paid as workers' compensation benefits. In particular, Stamford sought reimbursement of: (1) medical expenses that it had paid to date; (2) temporary total disability payments allegedly made to the plaintiff as workers' compensation; (3) the present value of a specific award based upon an alleged 20 percent permanent partial disability to the plaintiff's back; and (4) the present value of any probable future payments.

With respect to Stamford's claims for reimbursement of medical expenses, the court awarded Stamford $18,741.38, less one third for the plaintiff's attorney's fees, and found that the city would not be responsible for any future medical bills. The court denied Stamford's claim for reimbursement of two thirds of the plaintiff's salary purportedly paid as temporary total disability benefits, finding that Stamford had paid the plaintiff her salary pursuant to a collective bargaining agreement and not pursuant to its workers' compensation obligations. Regarding Stamford's claim for the present value of a specific award based on a purported 20 percent permanent partial disability of the plaintiff's back, the court found that, because the plaintiff had not filed an application for a specific award, Stamford could not be reimbursed, but awarded Stamford a credit should the plaintiff ever make a claim for such specific benefits.

A

Stamford first claims that the court improperly concluded that it was not entitled to reimbursement of two thirds of the plaintiff's salary under General Statutes 31-293 (a) because, in the court's view, the plaintiff was receiving her full salary solely pursuant to a collective bargaining agreement, and not as workers' compensation. We agree with Stamford.

Stamford's claim involves the question of whether the collective bargaining agreement, which provides that all employees "are subject to the Workmen's Compensation Law of the State of Connecticut," was intended to provide police officers with two thirds of their salary as workers' compensation benefits for which they would be required to reimburse Stamford should they recover third party damages, and with one third of their salary as additional sick leave. In interpreting the collective bargaining agreement, the trial court focused primarily on the lack of any specific contractual language or practice demonstrating that two thirds of the salary represented workers' compensation benefits. Although contract interpretation is generally a question of fact for the trial court; Bowman v. 1477 Central Avenue Apartments, Inc., 203 Conn. 246, 257, 524 A.2d 610 (1987); the trial court's interpretation of this contract properly should have been informed by reference to the Workers' Compensation Act. By failing to consider the Act, the trial court ignored the policy underlying 31-293 (a) of our Workers' Compensation Act which prohibits double recovery.

The collective bargaining agreement provides that "all employees are subject to the Workmen's Compensation Laws . . . ." This language necessarily implies that an employee is subject to all provisions of the Workers' Compensation Act, not solely to those provisions which benefit the employee. General Statutes 31-293 (a) provides that an employer who has paid or who has become obligated to pay compensation under the Workers' Compensation Act may bring an action, or join an action brought by the employee, against a third party to recover from an award of damages "any amount that he has paid or has become obligated to pay as [workers'] compensation to such injured employee." See footnote 3, supra. Under the act, Stamford, as the employer of the plaintiff, was obligated to pay two thirds of her salary as compensation. General Statutes 31-307. Therefore, because the language of the contract provides that the employees are subject to the Workers' Compensation Act, and because the act specifically provides that an employer who joins a third party action may recover sums paid as compensation from the damages awarded under that chapter, the trial court improperly determined that the terms of the collective bargaining agreement nullified the statutory reimbursement provision of 31-293 (a).

Our conclusion that two thirds of the plaintiff's payments represented workers' compensation benefits is buttressed by Professor Larson, who, in addressing contractual supplements to compensation, states that where, for example, an employer agrees by contract to pay an employee $250 a week instead of the statutory amount of $200, "[o]ne cardinal principle . should ordinarily settle most such questions [that arise]. That principle is the simple proposition that the contractual excess is not workmen's compensation. It performs the same functions, and is payable under the same general conditions, but legally it is nothing more than the fruit of a private agreement to pay a sum of money on specified conditions." (Emphasis added.) 4 A. Larson, Workmen's Compensation Law 97.53. Although this principle has not been universally accepted by other courts; compare Evans v. Missouri Utilities Co., 671 S.W.2d 812, 816 (Mo.App. 1984), with Gorski v. Kearny, 236 N.J. Super. 213, 215, 565 A.2d 415 (1989); we conclude that the only interpretation of the collective bargaining agreement that supports the underlying prohibition against double recovery in our Workers' Compensation Act is that propounded by Larson. We conclude, therefore, that only the amount in excess of the statutorily mandated temporary total disability payments necessarily was paid to the plaintiff pursuant to the collective bargaining agreement, and that Stamford will be entitled to reimbursement of two thirds of the plaintiff's salary as temporary total disability payments pursuant to 31-293 (a), should the plaintiff recover a third party award on retrial. Such an interpretation affords proper deference to the language of the collective bargaining agreement referring to the provisions of the Workers' Compensation Act.

This interpretation, preserving the employer's right to reimbursement of temporary total disability compensation pursuant to 31-293 (a), advances the policy prohibiting double recovery. See generally J. Asselin, Connecticut Workers' Compensation Practice Manual (1985) p. 272. In this case, the trial court's interpretation of the collective bargaining agreement allowed the plaintiff such a recovery, namely, her full salary from Stamford and damages from the third party action, part of which represented lost wages. Our determination in this case conforms to our continued adherence to the policy prohibiting double recovery in our Workers' Compensation Act. See Enquist v. General Datacom, 218 Conn. 19, 26, 587 A.2d 1029 (1991) ("[o]ne of the purposes of the workers' compensation statute is `the avoidance of two independent compensations for the injury'"); Paternostro v. Edward Coon Co., 217 Conn. 42, 47-49, 583 A.2d 1293 (1991) (double compensation not allowed under workers' compensation).

Although we conclude that Stamford may be entitled to recover temporary total disability payments, should the plaintiff recover damages from Mayer on retrial, we note that the workers' compensation commission has not made a determination of when, or whether, the plaintiff has reached maximum medical improvement such that she was no longer entitled to receive temporary total disability; General Statutes 31-307; and such that she may have been entitled to receive a specific award. The parties disputed the date on which the plaintiff reached maximum medical improvement, a determination that is relevant to calculating the number of reimbursable weeks of temporary total disability compensation paid by Stamford. General Statutes 31-307. We conclude that such a determination is properly made by the workers' compensation commission. Although 31-293 (a) does not explicitly provide that such a determination must be made by the commissioner, we conclude that, where there is no agreement on the date of maximum medical improvement, the act implicitly delegates such responsibility to the commissioner. See Love v. J. P. Stevens Co., 218 Conn. 46, 50, 587 A.2d 1042 (1991) (workers' compensation act delegates responsibility to commissioner to calculate credit for unknown future benefits).

B

Stamford next claims that the trial court incorrectly applied General Statutes 31-308 to its claim for reimbursement of the present value of a potential specific award for partial permanent injury to her back. The plaintiff claims on her cross appeal that, because there has been neither a demand for a specific award nor a finding relative thereto by the commission and because Stamford offered no evidence at trial as to the present value of the award, Stamford has waived its rights to recover any specific award. We disagree with the claims of both Stamford and the plaintiff

It is uncontroverted that the plaintiff has never made a claim for a specific award. The trial court, on that basis, concluded that "any specific `award' granted in the future should belong to the city less attorneys' fees," thereby providing Stamford with a credit should a specific award be granted by the commissioner in the future.

Under 31-293 (a), an employer's claim, after the employee has recovered damages from a third party, consists of: "(1) the amount of any compensation which he has paid on account of the injury which is the subject of the suit and (2) an amount equal to the present worth of any probable future payments which he has by award become obligated to pay on account of such injury." (Emphasis added.) We recently have held, in interpreting 31-293, that "the employer [has] the right to immediate reimbursement for the present worth of future compensation payments to the extent that the future payments were known and formalized by a commissioner's `award' prior to the disposition of the third party action." (Emphasis added.) Enquist v. General Datacom, supra, 24.

In this case, the amount of a specific award to the plaintiff, should she choose to seek one, is unknown. Furthermore, it is the province of the workers' compensation commission to determine whether such an award is proper. Cleveland v. U.S. Printing Ink, Inc., 218 Conn. 181, 186, 588 A.2d 194 (1991) ("a future claim for specific benefits would require a separate proceeding before the commissioner"). As provided by one Connecticut commentator, "[o]nce the medical decision has been made that the claimant has reached maximum medical improvement, the commissioner then has the discretion to decide whether . . . a specific indemnity award is due." J. Asselin, supra, p. 152. Therefore, because there had been neither a claim for a specific award nor a determination by the workers' compensation commission, the trial court correctly refused to reimburse Stamford for the present value of a specific award pursuant to 31-293 (a).

The plaintiff also claims, however, that "[t]he City has waived its rights as to any recovery of the specific award" because it had the opportunity to present evidence at trial as to the present value of the future specific award and failed to do so. This claim is meritless because no request for a specific award has been filed with the commissioner and no award has been made. Therefore, Stamford had no evidence of present value to present to the trial court, and has not waived its rights to receive a credit should the plaintiff recover an award from Mayer on retrial. See Enquist v. General Datacom, supra, 26.

C

Stamford next claims that the trial court improperly failed to follow the statutory method of apportionment provided by 31-293 (a). We agree.

Pursuant to Stamford's motion for apportionment, the trial court allowed reimbursement "with respect to medical, hospital and related bills in the amount of $18,741.38, less one-third thereof for the plaintiff's attorneys' fees." (Emphasis added.) Stamford argues that the trial court improperly deducted one third of the medical bill reimbursement for the plaintiff's attorneys' fees. The plaintiff claims only that the court "intended that the City, which has received the benefit of the Plaintiff's attorney's efforts, should be required to defray part of that cost." The plaintiff cites no authority to support the method of apportionment implemented by the trial court, nor does she argue that it is consistent with 31-293 (a). Rather, she appears to claim that such a policy determination of contribution to the plaintiff's attorneys' fees was within the trial court's discretion. We disagree.

Section 31-293 (a) provides, in pertinent part, that "[i]f such employer and employee join as parties plaintiff in such action and any damages are recovered, such damages shall be so apportioned that the claim of the employer . . . shall take precedence over that of the injured employee in the proceeds of such recovery, after the deduction of reasonable and necessary expenditures, including attorneys `fees, incurred by the employee in effecting such recovery." (Emphasis added.) The statute then provides that "[i]f the damages, after deducting the employee's expense as provided above, are more than sufficient to reimburse the employer, damages shall be assessed in his favor in a sum sufficient to reimburse him for his claim, and the excess shall be assessed in favor of the injured employee." (Emphasis added.) General Statutes 31-293 (a).

The legislature specifically stated in 31-293 (a) that "damages shall be assessed" in the employer's favor, if sufficient, after deduction of the employee's expenses from the total of the award." Therefore, we must determine whether the trial court improperly bypassed the statutory method of apportionment by assessing to Stamford a portion of the plaintiff's attorneys' fees from its medical reimbursement. In determining whether the use of "shall" is mandatory or directory, the test is "whether the prescribed mode of action is of the essence of the thing to be accomplished." Varituli v. Sotire, 192 Conn. 353, 360, 472 A.2d 336 (1984); see also LeConche v. Elligers, 215 Conn. 701, 710, 579 A.2d 1 (1990). "That test must be applied with reference to the purpose of the statute." Id.

One of the principal purposes of 31-293 (a) is to reimburse an employer for the expenses it has incurred on account of a workers' compensation claim, when the employee has recovered damages in a third party action in which the employer has properly intervened. J. Asselin, supra, p. 272. "The right of recovery of the employer is superior to the right of the employee to the proceeds of any third party claim. The two purposes served by this provision are: (1) [i]t insures that the party responsible for an injury will not benefit by payments made to the injured employee by the employer [; and] (2) [i]t denies the injured employee double compensation for the same injury." Id.

In light of the purposes of 31-293 (a), it is clear that the legislature's use of "shall" is mandatory. Therefore, the trial court improperly bypassed the statutory method of apportionment by not awarding to Stamford the total amount of the medical bills that it paid to the plaintiff as workers' compensation. On remand, should the plaintiff recover damages from Mayer, the trial court must first deduct from the total awarded damages the plaintiff's expenditures, including attorneys' fees, and then, if an excess remains, award to Stamford the total amount of medical bills, and other relevant expenditures, that it paid for the plaintiff as workers' compensation. See Bizzoco v. Chinitz, 193 Conn. 304, 306, 476 A.2d 572 (1984); see also J. Asselin, supra, p. 276.

IV

THE PLAINTIFF'S CROSS APPEAL

On her cross appeal with respect to Stamford, the plaintiff claims that the trial court improperly: (1) granted Stamford's motion to intervene; (2) ruled that Stamford was no longer obligated to pay her future medical bills related to the accident; and (3) ordered that any specific award granted in the future should belong to Stamford. We agree with the plaintiff on her second claim.

A

The plaintiff first claims that the trial court improperly granted Stamford's motion to intervene, thereby allowing it to obtain reimbursement of compensation. We disagree.

The plaintiff's original complaint named as defendants both Mayer and Stamford. The office of corporation counsel for Stamford represented both Mayer and the city in this action pursuant to 7-465. On November 17, 1986, the trial court granted Stamford's motion to strike the counts against it because the complaint was based on an allegation of negligence by a fellow employee. After the elimination of Stamford as a defendant, the office of corporation counsel continued to represent Mayer. At no time did the plaintiff provide Stamford with statutory notice of the third party action pursuant to 31-293.

On March 21, 1989, Stamford filed a motion to intervene, claiming that it was not barred by the thirty day time limitation of 31-293 (a) because it had never received formal statutory notice of the commencement of the action. The trial court granted the motion to intervene. The plaintiff filed a motion to dismiss the intervening complaint, and the trial court denied the motion.

General Statutes 31-293 (a) "specifically grants an employer who has paid workers' compensation benefits to an employee the right to join as a party plaintiff in the employee's actions against third party tortfeasors." Winslow v. Lewis-Shepard, Inc., 216 Conn. 533, 536, 582 A.2d 1174 (1990). This right to join is contingent, however, on its timely exercise. Id., 537. "An employer who does not receive notice from an employee concerning the institution of a third party action in accordance with 31-293 `[cannot] be barred from intervening by the passage of time which this statute prescribes, because, until notice is given, the time does not begin to run." Id.; see also Lakewood Metal Products, Inc. v. Capital Machine Switch Co., 154 Conn. 708, 710, 226 A.2d 392 (1967).

It is undisputed that the plaintiff did not give Stamford statutory notice of the third party action against Mayer. She argues, however, that because Stamford's corporation counsel represented Mayer, that office was necessarily aware of the third party action and, therefore, the knowledge of the attorney should be imputed to the client, Stamford. Section 31-293 (a) provides for no such exception.

Section 31-293 (a) states that "[i]f either such an employee or employer brings such an action against such third person, he shall forthwith notify the other, in writing, by personal presentation or by registered or certified mail, of such fact and of the name of the court to which the writ is returnable." The statute also provides that "[t]he bringing of any such action against an employer shall not constitute notice to such employer within the meaning of this section." General Statutes 31-293 (a). If filing of the action against the employer is insufficient notice to satisfy 31-293 (a), then filing of such an action against a third party who has the same attorney as the employer is likewise insufficient notice.

The notice requirements are clearly set forth in 31-293 (a), and the plaintiff did not comply with these requirements. On the facts presented here, we decline to accept the plaintiff's invitation to whittle out an exception to the notice requirements, contrary to the clear legislative intent.

B

The plaintiff next claims that the trial court improperly ruled that Stamford will no longer be obligated to pay for the plaintiff's future medical bills. In light of our recent decisions in Enquist v. General Datacom, supra, and Love v. J. P. Stevens Co., supra, we agree.

In Enquist, we considered the effect of the 1951 amendment to 31-293 (a) which added the following language: "`[t]he rendition of a judgment in favor of the employee or the employer against such party shall not terminate the employer's obligation to make further compensation, including medical expenses, which the compensation commissioner shall thereafter deem payable to such injured employee.'" Enquist v. General Datacom, supra, 23. We concluded that, although an employer remains liable for future compensation payments to an injured employee, including for medical payments, the employer has the right to obtain a credit for unknown future benefits "to the extent that there are excess proceeds from a third party recovery." Id., 25; see also Love v. J. P. Stevens Co., supra, 49-50.

Based upon these recent interpretations of 31-293 (a), the trial court improperly relieved Stamford of future liability for all medical payments. On remand, should the plaintiff recover another award of damages, the trial court should grant Stamford a credit for future payments that it may be required to make by the commissioner, only to the extent, however, that there are excess proceeds, after payment of expenditures, from that award of damages.