Ms. Togar calls Coach Steroid and Mr. McGree to an emergency meeting to demonstrate the dangers of rock and roll. First, she holds up "before and after" pictures of a lab mouse exposed to rock music - the only difference is the mouse is now standing upright and wearing a leather jacket. Steroid and McGree are a bit incredulous, but she does successfully demonstrate that music played at the levels typically used at rock concerts will make a mouse explode. Much later in the movie, Riff is going to the Ramones show: Among those waiting in line is... a giant mouse in a leather jacket. The bouncer will only let him in when he shows that he brought earplugs, and therefor won't explode.