When Vinnie becomes Biffo's new study partner, he's sure life will be terrible. But away from his siblings, Biffo s friendly, intelligent and articulate. Unfortunately, when the other Duckys are around, he reverts to his old ways. Vinnie thinks about quitting as Biffo's partner, but decides with Rocket to help Biffo overcome his affliction. They are successful, until Biffo decides that his old ways were more fun.