Yes, yes we do. Light bullying is actually a way to teach children that if you're acting in a fashion that makes you seem strange to the majority of your peers they're going to ostracize you. This is the case in 'adult' society, work society, and on down the line. Ideally the child will realize in what ways they need to act different or they'll learn to stand up for themselves. The issue is when it goes into them being harassed continually for no reason other than the bully being a spiteful little shit who knows they've a weak target.
Though who knows maybe the new top predator in schools are the turbo-troons, like a T-rex in an ill fitting dress.