DS12 joins in on a soccer game in the yard. He is played with 2 kids younger that are playing nicely. DS first kick is so huge it would be appropriate for the soccer field not our yard. Then he continues to play as if he must show how great he is, instead of scaling it back to the situation. The kids told him he was being to rough and he said mean comments to his sister. He is not very agressive in his real soccer games. I'm not sure why he had to show off. This has happended before in our yard. Any ideas on helping him with this?