Standing up for himself

So yesterday I'm picking up my son from school and there's a little boy there who is acting up. He's a nice little chap, but he needs some work on manners and his tendency towards violence. Today I drop my son at school and this same little boy is acting up yet again and within 10 minutes has manged to knock two little girls to the ground, shout at another child and hit another. There were only 6 children in the class. My son was the only one he hadn't troubled.
I figured, it's only a matter of time.

While there, the little boy began to once again give trouble so I looked at him and told him that how he was behaving was not nice. I then learned that the teacher actually wanted him removed from the class because he was such a problem. My son got upset when I told the little boy he wasn't nice because one he doesn't like when I take a stern tone and he hates to see others hurt. I then began talking with his teacher about these traits and she told me that she had seen them. I told her my concern about his not fighting back when other children bothered him and she told me not to worry because while he did not start fights, he could certainly finish them.

Apparently, the same little boy had been after him on previous occassions and my little had quickly made a fist and showed him in no uncertain terms that he would not tolerate abuse of any kind. Go Tristan! His teacher then told me that he had made after this little boy whenever he'd been bothered and she always had to tell him to walk away and not retaliate. So while I don't endorse violence, it's nice to know that while he's a gentle soul, he's no pushover.