One thing I have never understood about one of my favorite movies, "Ferris Bueller's Day Off": why does Jeanie decide to help Ferris out at the end of the movie and save him from being busted by Mr. Rooney?
She has spent the entire movie expressing her hatred for Ferris and finally has a chance to show her parents that he skipped school, yet she lets him off the hook and saves him from both her parents and Mr. Rooney.
At IMDB, someone has offered the explanation that it's because she doesn't want her brother to keep going to school with her, which he would be if Rooney holds him back and doesn't let him graduate. But I find this answer unsatisfying.
Also, it's been suggested that perhaps her therapy/makeout session at the police station with Charlie Sheen helped change her attitude. But I find this answer unsatisfactory too, because if this was the case, why did she speed home from the police station, hoping to get there before Ferris?
Can anyone offer up a better explanation for Jeanie's change of heart?