Yes, my ds does things like that too: the other day he was running around with a paper airplane at the bus stop, I wasn't there but my sister said she pulled him aside because he was running it just about into other people's faces. She said he stopped right away but when I asked about it, he said, 'Well they all really hate me, so why not irritate them?'
Of course we had a quick conversation about how if someone doesn't like you it doesn't mean they hate you, and how engaging in irritating behavior is not going to get him far in the friends department. He's not like this all the time, but the bigger the crowd the more likely he is to pull one of these odd behaviors.
There is a section in the book about how *not* to join a group - and how to join a group. Good luck to you, I am curious to know how things go for him.
