I have a five week old and a two and a half year old and the latter is driving me MAD!!! The main problem is with him hitting and punching his baby brother. The worst instances are when I am feeding the baby and he is constantly trying to clamber across me to get to his little brother to cuddle him, which ends up in him hurting him. I then get very angry and stressed and feel like I am shouting all day every day. Any ideas? He will not take no for an answer, is extremely strong and time out works for a while then he just does it again and smiles at me.