In the past, the UIL has enforced the mandatory forfeiture rule to require that a school forfeit all of its contests in which the litigating student participated even though the student's participation was pursuant to a lawful court-ordered injunction.See Texas Educ. Agency v. Dallas Indep. Sch. Dist., 797 S.W.2d 367, 369 (Tex.App. — Austin 1990, no writ). (This Court held that the appeal in that case was moot, and therefore the underlying order was vacated. Accordingly, the UIL's determination of ineligibility became final and triggered the enforcement of the mandatory forfeiture rule).
Here, because C.J.'s and Mathew's period of ineligibility has expired, and because C.J. has graduated, this appeal is now moot. See id., at 760-61; Tex. Educ. Agency v. Dallas Indep. Sch. Dist., 797 S.W.2d 367, 369 (Tex.App.-Austin 1990, no writ) (court determined appeal was moot because the football season had ended); Fink v. Hinson, 243 Ga. 337, 253 S.E.2d 757, 758 (1979) (holding that the validity of injunctive relief sought by students was mooted by football season's end). Accordingly, the issue of whether C.J. and Mathew moved to Pilot Point for athletic purposes is now moot.
When a temporary injunction becomes inoperative due to a change in status of the parties or the passage of time, the issue of its validity is also moot. See Parr v. Stockwell, 159 Tex. 440, 322 S.W.2d 615, 616 (1959); Texas Educ. Agency v. Dallas Indep. Sch. Dist., 797 S.W.2d 367, 369 (Tex.App.-Austin 1990, no writ). An appellate court decision about a temporary injunction's validity under such circumstances would constitute an impermissible advisory opinion. See generally Burch, 442 S.W.2d at 833; Texas Educ. Agency, 797 S.W.2d at 369.