When I was in elementary school, the principal marched the entire grade to the city park and put boxing gloves on me and the best athlete in the class and made us fight it out. The other guy was my nearest neighbor, a good friend, and someone with whom I had never had any disagreement at all.
It was very embarrassing getting my ass kicked in front of my entire grade and the teachers.
I never understood the reason for this exercise in humiliation. I don't think the other guy had any idea at all why he had been chosen by the principal to beat the crap out of me. Fortunately for me, he didn't put much effort into it.