Fnog is a sexist kung fu master. He taught Leela kung fu when she was a child. He was rude towards Leela because she was a girl and he thought the girls shouldn't be able to fight. Whenever he challenged Leela to a fight, he "won" because Leela lacks "the will of a warrior" because she is a girl. Soon, he created a robot named the Destructor who fought Bender, but Fnog was controlling him. Leela knocked him out that caused Destructor to fall on top of Bender, flattening him.