E.A. QUINNELL, J.

Defendant was found guilty of larceny in a building following a jury trial on April 12, 1979. MCL 750.360; MSA 28.592. On April 26, 1979, he was sentenced to a term of imprisonment of two years, eight months to four years. Thereafter, on May 15, 1979, defendant pled guilty to being a fourth-time felony offender contrary to MCL 769.12; MSA 28.1084. At that time, a flat sentence of five years was imposed to replace the earlier indeterminate sentence. Defendant now appeals as of right.

Defendant first submits that it was error for the trial court to allow the prosecutor, over objection, to question him concerning his use of aliases. One panel of this Court has characterized the use of an alias as "highly probative" of a witness's credibility. People v Dietrich, 87 Mich. App. 116, 138-139; 274 N.W.2d 472 (1978). See also People v Pace, 98 Mich. App. 714; 296 N.W.2d 345 (1980). We disagree. The utilization of assumed names is very common among certain cultures in American society. While there are undoubtedly instances where aliases are used to deceive, it is also likely that an assumed name is being used for entirely innocent reasons and therefore should not be deemed especially probative of a person's credibility. Furthermore, a defendant may be highly prejudiced by the jury's learning that he has used alises. This could be a particular problem in cases where the defendant and the jurors come from different cultures. If the utilization of assumed names is unknown among the jurors' backgrounds, they may place undue emphasis on defendant's employment of an alias.

The unstated inference which a juror might draw from the use of an alias is that defendant was "up to no good" or he would not have chosen to use a second name. Cross-examination as to the use of an alias permits a jury to speculate that a defendant may have been involved in some nefarious activity, unspecified as to time, nature and circumstances. Evidence of other specific acts are admissible only under limited circumstances, MRE 404(b), People v Spillman, 399 Mich. 313; 249 N.W.2d 73 (1976). Evidence that would permit an inference of nonspecific misconduct should be at least equally circumscribed.

This does not mean that we would disapprove evidence about a witness's use of an alias in all instances. Such evidence may be admissible under MRE 404(b) as part of the prosecutor's case in chief in a false pretenses case, for example. Alias evidence might also be admissible under MRE 608 and MRE 609 to affect credibility. It is not the use of the alias in and of itself, however, that casts doubt on the witness's truthfulness. Instead, what detracts from such a witness's veracity is the specific ignoble purpose for which the alias was employed. If the prosecutor knows only that on some past occasion the witness has used an alias, he may not permissibly question him about the assumed name.

Even in those instances where questions might permissibly be asked concerning the use of an alias, the trial court still has an obligation to balance the probative value of the questions on credibility against the potential danger for unfair prejudice. MRE 403.

Despite the foregoing, no reversal is required in this case. The questions concerning defendant's use of assumed names were few and not highly inflammatory. The prosecutor did not refer to defendant's use of aliases in his closing argument. Most importantly, two eyewitnesses testified that they saw defendant put the items, 4 musk oil gift sets and 18 musk oil colognes, into a bag and leave the store without paying for them. It was uncontroverted that defendant fled after being approached by store security guards. The evidence of defendant's guilt was overwhelming. The error was harmless.

Defendant next asserts that the trial court's ruling that he could be impeached by proof of a prior conviction requires reversal. Admissibility decisions vis-a-vis the use of prior convictions are within the trial judge's discretion. People v Jackson, 391 Mich. 323, 336; 217 N.W.2d 22 (1974). In People v Crawford, 83 Mich. App. 35, 39; 268 N.W.2d 275 (1978), we held that the following standard should be applied in determining whether to admit prior convictions:

"The factors which the judge must weigh in making his determination include: (1) the nature of the prior offense (did it involve an offense which directly bears on credibility, such as perjury?), (2) whether it is for substantially the same conduct for which the defendant is on trial (are the offenses so closely related that the danger that the jury will consider the defendant a `bad man' or infer that because he was previously convicted he likely committed this crime, and therefore create prejudice which outweighs the probative value on the issue of credibility?), and (3) the effect on the decisional process if the accused does not testify out of fear of impeachment by prior convictions (are there alternative means of presenting a defense which would not require the defendant's testimony, i.e., can his side of the story be presented, or are there alternative, less prejudicial means of impeaching the defendant?)."

Although the Crawford factors were not explicitly noted by the trial judge, lengthy argument with counsel prior to his ruling convinces us that he was well aware of the appropriate standards. See People v Joyner, 93 Mich. App. 554, 560-561; 287 N.W.2d 286 (1979). In any case, our review of the arguments made on the motion in limine to suppress defendant's record convinces us that the prior conviction for larceny over $100 was properly admitted. Defendant had numerous prior convictions. All of these convictions were for theft offenses and, as such, involved elements of dishonesty. The trial court allowed the prosecutor to use evidence of only one of these convictions for impeachment purposes. While the trial court allowed the prosecutor to choose which conviction to use, this is not fatal in the case at bar since the similarity of the prior convictions made them all equal in terms of potential prejudicial effect. No alternative means of impeachment was suggested, and an examination of the record reveals no less prejudicial manner in which defendant might have been impeached. At no time did defendant indicate that his decision to testify depended on the court's ruling on the suppression motion and, in fact, defendant did testify. Use of evidence of the one conviction for impeachment purposes was not error.

Defendant lastly argues that a reference to his brother's suspected theft activity requires reversal. No objection or request for a curative instruction was made following the witness's statement that he suspected defendant's brother of being a thief. Consequently, absent a showing of manifest injustice, no reversal is warranted on this basis. In our opinion, the witness's unanticipated and unresponsive answer was not so inherently prejudicial as to require reversal. People v Harry Fleish, 321 Mich. 443, 463; 32 N.W.2d 700 (1948), People v Phillips, 61 Mich. App. 138, 149-151; 232 N.W.2d 333 (1975).

Affirmed.

D.C. RILEY, J., concurred.