I have to tell you, my son, other than being a bit rammy as little boys are, had never had trouble making friends. And then all of a sudden I'm being hauled into the principal's office and being told by his teacher he's beating up other kids and has a social dysfunction disorder. I talked to some of the moms from the English program about him, getting their take on what he's like, and all their kids got along so well with him at after school stuff that they all just scratched their heads in confusion over the whole thing.
It took a lot of coaxing to get him to start talking about why he was having troubles. And once he started, and the teacher knew what to look for, the whole thing became abundantly clear. I would volunteer in that class, and it was like children of the freaking corn. One little boy, another outside the group like my son, leaned over and whispered to a little girl, just loud enough for me to hear, that he thought her coloring was beautiful. The little girl screeched and ran to the teacher... "teacher, ____ is being rude!!". The teacher scolded the poor boy, and I had to step in and explain what was said. Needless to say, I was ecstatic to get my kid out of that environment. The 'you don't belong', 'you're not invited to my party because my mom says you're awful', 'we don't like you, go away' mentality was too bizarre for me. I was terrified of what it would do to my son in the long term.