On two occasions, Willie frames Bart for pulling pranks that Bart would normally pull. In "The Father, the Son, and the Holy Guest Star", he unleashes a giant pie of rats on the Springfield Elementary medieval festival to get revenge for being cast as the village idiot and his cruel treatment. Skinner is quick to blame Bart and expels him. Willie is never shown being found out as the culprit, but it can be assumed that he is eventually found out after Bart is enrolled in Catholic school and earns his way back into Springfield Elementary. In "Dark Knight Court", Willie causes hundreds of eggs to be splattered at the Springfield Easter celebration out of inbred hatred for the holiday. Bart is put on trial for the incident, only to be acquitted when Willie is caught and turned in by Lisa and Mr. Burns (as Fruit Batman).