Homer takes Marge and the kids on an outing to the zoo. While there, he points out how stupid a family of chimpanzees look - and fails to realize that the chimps look identical to his own brood.
The Simpsons go to an art museum. Bart stares at a nude painting and Lisa plays with an ancient vase. Marge realizes that the kids are too young to appreciate fine arts.
The kids are watching TV and Homer tells them to stop watching "The Itchy and Scratchy Show" because it's "too violent." Unable to watch cartoons, Bart puts on his own show.
Homer takes the family to a psychologist. The Simpsons drive the psychologist over the edge and learn that this was just the cure that the family needed.