i have a ds 3 1/2 years old and just recently all he wants to do is physically fight. he wakes up in the morning with 'let's fight mummy' and particularly at the end of the day loves to fling cushions everywhere, most of his play involves one toy hitting another violently across the room. Have a 20 month old dd who is subject to a lot of squashing but not really hitting. If we socialise with older boys he seems to regard them as fair game and will just tackle them but tends not to do it so much with his own friends. He watches lots of tom and jerry, a little ben 10 and other non-fighty stuff. Won't let him watch anything too violent as this feeds his fantasy of being some kind of snarling tiger. I know it's probably fairly normal testosterone fuelled stuff, do you think enrolling him in a judo/martial arts class would help?