So I have a new dcb nearly 3. He is part time 2 days a week and has been here 3 months. He seems to change the whole dynamics of the group! He causes lots of arguments over toys and sharing he wants what anyone else is playing with, eating, wearing etc. He never listens to anything - come here, get your coat, change toys now the timer has gone off, other children talking (and there is nothing wrong with his hearing he can hear the word candy spoken quietly from across the room lol). And I know this might sound a bit crazy but he tries to intimidate the other children by using his body or a large toy to trap them in place - but he never hurts them by hitting. He isn't naughty just irritating (I know I'm not supposed to say that ). I have spoken to his parents about certain things and they sound like they are trying but nothing has really got any better. I just don't know how to help him fit in better?