DS1 5 can be rough and boisterous with DS2 22mth and other children (he can also be very gentle and loving). I think alot of it, esp with DS2 is attention seeking behaviour so DH send him to his room for 5 mins to try and break the cycle. DS1 has always been hopeless at entertaining himself so there is a fair amount of this type of behaviour when we are at home.
He can also be rough with other children but not in a malicious way more a game gets a bit rough and out of hand (he is tall for his age). I have tried to explain to him that he just he can't be that rough with others but he doesn't seem able to stop himself. When will it sink in?