My recollection is that, being a kid-organized activity (vs gym class when the teachers organized it), any bullying during dodge-ball or similar was handled by not allowing those kids to play. Yet another advantage of letting kids sort it out, if you wanted to participate you had to play by the rules.
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And speaking of gym class - that may have also been the last vestige of corporal punishment. Back in jr high in the mid-70s we had separate boys and girls gym. Boys gym was run by the wresting and basketball coaches. If you acted up you had your choice of punishment - one whack with the "board of education" or one (?) minute on the wresting mat with the coach.
At the beginning of each school year someone was always first to have to make that choice. The year I remember, the first kid took the paddle. It was one of those pizza-peel shaped things with holes drilled in it. The kid had to bend over with hands on knees and the coach wound up and let him have it. And it wasn't a love tap, that thing whistled through the air and made a hellacious "slap" when it hit. That kid screamed and ran around the gym a few times with his hands on his ass while the rest of us laughed...and pondered.
The next time a kid was given the choice he took the option of going to the mat with the wresting coach. That kid ended up looking like Beetle Baily after Sarge finished with him, or Loki after Hulk slammed him around like a rag doll. The rest of us didn't laugh any more, but we did ponder.
I think the only other time a kid got in trouble after that was when one kid got into an argument of some sorts with a coach. Our gym was across an alley from the school building and we were lined up ready to head to lunch. The kid got into it with a coach, and the coach moved toward the kid. The kid started backing up, then saw a Coke bottle in the alley and picked it up. He tried one of those movie moves where you break the bottle against a brick wall and use it like a shiv. Turns out that only works in the movies with a stunt bottle. The coach kept moving towards that kid and had one of those crazy looks in his eyes. The kid ran, the coach ran after him until they disappeard around the corner. Then the lunch bell rang and the rest of us didn't care about that kid anymore.
Good times.