Any tips of dealing with aggressive behaviours from a 4y old boy. He'll hit and throw things, and will also shout nasty comments like 'im going to hit you in a minute!!' Or 'this car is going to crash into the wall...' And then he'll launch it full force!? No idea where he gets this from. Ive tried role play games and explaining whats nice and whats not but doesnt make much difference as he thinks acting like this is funny