I can't believe I pushed the little boy into the pool.
You monster. Why would you push that little boy, is he okay?
He called me fat, so I pushed him in.
I get that people can offend you, but you are going to be worse than the offender if you're going to physically harm that person and possibly drown that little boy if he did not know how to swim. if you don't want people calling you fat, then you shouldn't go to swimming pools and probably just stay at home and go out once you are ready to be confident about yourself.
He called me fat, it's a fact and I don't appreciate that. He should not insult other people.
Insulting somebody should not be punished by pushing somebody into a pool. He could go in the wrong way and have gotten hurt. Talk to him or talk to his parents instead.