The Professor did a study that showed that violent kids hang out with violent friends.
This study, by a Professor, showed that birds of a feather flock together?
I don’t even know why I read it, and I surely don’t know why I am sharing it. It guess a lesson could be to watch who your kids are friends with because violence seems contagious. https://www.yahoo.com/news/violence-spreads-contagious-infection-among-friends-191821589.html