Malcolm in the Middle - The Bully
Reese gets this great idea that if he joins the school wrestling team, he can beat people up without getting in trouble. At first his plan works. He turns out to be a really good wrestler, and everyone's pretty proud of him. Then things don't go so well. During a big match, Reese has to wrestle against a girl. Even worse, he loses and loses badly.
Reese decides to quit wrestling and stop beating up other kids altogether. At first that's good news for Malcolm and the class of Krelboynes, because they're no longer on the receiving end of Reese's kicks and punches. But other bullies soon step forward where Reese left off. Malcolm becomes their prime target and he gets punched, shoved, and even thrown into a garbage can.
After taking several beatings, Malcolm and the Krelboynes figure out that things were actually better when Reese was the main school bully. At least, he wouldn't beat on them too hard. Reese comes to his senses when he sees Stevie getting picked on by some chump. A few punches, a couple of kicks, and a knee drop later, and Reese reclaims his crown as the school's chief school bully.