I posted the Shoo incident. I then thought about the Rob of the California Georges fisticuffs. Actually I dont really recall any other then one incident during elementary school leadership.
If I recall accuratly. Rob was running for class president or something against Roger. At one point this became a 'brawl' out on the playground with various supporters. (note: Even using the term brawl is overly dramatic. It was kids on a playground roughousing and using the election as an excuse).
At one point Rob and Roger found themselves facing off with each other. Neither wanting to 'start' the fight by throwing the first blow. Either they called it a draw or the bell rang.
No broken hands or anything but in retrospect, shows quite a bit of common sense for 3rd or 4th graders.