After watching a violent episode of Itchy and Scratchy, Maggie clubs Homer on the head, in a scene evocative of Janet Leigh’s death in Psycho. Marge is so upset that she starts a campaign to tone down the violence in cartoons. She succeeds, and Itchy and Scratchy becomes so boring that the children of Springfield stop watching cartoons, becoming happier and healthier. Then Michelangelo’s statue of David begins a tour of Springfield and the same people who supported Marge’s campaign against cartoons now demand that David not be shown. Marge cannot support this, so the statue visits and the cartoons return to be violent.