Quick backstory previously it was just him and my brothers friend, my brothers friend threw it to him the kid threw it back and without a second thought instantly threw it behind him on purpose so the kid won. Okey so I recently me, my brother, and his friend went to our neighborhood pool and when we got there all but one person there we knew and they were playing tips ( tips is a game were basically there's a ball and you jump and throw it to someone in the circle and that person needs to jump catch it and throw it back to anyone in the circle before there feet hit the ground) so we all 3 joined in. The person we didn't know was the kid and from what he said he was 9 years old. The pool closed in a couple minutes the kid was talking trash saying like he was better than me at the game and he could beat me up and literally people were agreeing I said the only reason he won was because people let him and almost never threw it to him and when they did they just tossed it. I actually got kicked out of the pool for saying that. So AITA ( I'm 13 years old )