My ds is 18 months now and has the tendency to start smacking me (only me) when he's in a temper tantrum. I just normally put him down on the floor and leave him to get on with it but then he throws himself around and smacks his head back on the floor and does this for around half hour. And he also screams bloody murder too. I don't know what to do. Everyone says 'don't take it personally' but it's hard not too. When you look after them,feed them and love them with everything you've got and then they hit you. Any advice?