I do know well about girls and mental/social cruelty. It may well have been the first thing I really studied and thought about once I really learned how to observe and analyze stuff. And I had a lot of interest in the topic and was in many ways a spy in the house of love and got to watch it close up as a JAFO.
And that level of social exclusion is huge, but its not like if you are one of the people getting beat up your all of a sudden going to be popular, and be invited to parties and all that. Nah, they still don't like you, still make fun of you, the physical violence is just a male bonus.
And in the interest of self disclosure, I was not one of those guys in HS, (Either group really, I was not a bully, nor a victim) as I had a reputation for being crazy, (by which they meant that they could not predict how, when, or how much I would react, and bullies love predictability) and I was always one of those 'if we going, lets go all the way' types, and so if you wanted to do violence, I'd go straight to Ultra-Violence, I mean if it was great fun to hit someone with your fists, how much more fun would it be to hit them with a wrench, that way my hands didn't even hurt.