I was at a party with my 7 year old, all the children were joining in playing the games apart from one child. For example, when they were sat doing pass the parcel, he was running round the outside of the circle. When they were doing farmers in the den and were all linked hands in a circle he ran in the middle uninvited with the farmer. Spent some time chasing a girl hitting her on the head with a teddy. Ignored the party hosts calls to come into the party room and lots more.
Does this sound like 7 year old behaviour?