I was a violent person in elementary school and Jr. High. I was made fun of constantly and things occasionally came to blows.

I usually won.

But it didn't help much, really, even if it satisfied me at the time to literally pound-in the heads of kids who'd been making me miserable.

Teasing and bullying only seem like they are about someone seeming weak. They're about a mob mentality. That is what needs to be addressed. I'd say a social atmosphere where non-conformists are fair game is mostly what stimulates bullies. Individual kids fighting back is not really going to be the solution.