This morning I was reading through my Facebook feed--a title really jumped out at me: "Bullying: A Rational Choice." Having a friend who teaches economics, I hear the term "rational choice" quite a bit, as that is apparently how economists view choices people make for their economic models.
Anyway, I read through the blog post and it stunned me. There is a compelling argument that is made about the origins of bullying and how it represents a social bonding experience related to conformity (increasing oxytocin), in-groups and out-groups. Fascinating. I would imagine that sharing such an article with your kids would yield some insights as well.