my ds is getting quite arguementative, he is just 3, shouting go away, muttering at me and then saying "nothing" when i ask what he said, being like a friends teenager tbh! any tips? i make an effort not to be rude and sharp myself of course- how to react to him, get him to realise is unpleasant to say things in that way etc? i do explain but he says "mummy.... come on.." or looks anywhere but at me.