My 5 year old son has become very aggressive and rude. We have had a very loving close relationship up until now. I have found he becomes aggressive and defiant when ever I make a simple request such as "lets brush our teeth" "can you get dressed" "time for school" I have been kicked, punched, headbutted, threatened, swore at. I was a firm believer in timeout until now and we have reward charts and we are consistant. Timeout was effective until he decided he didn't want to sit there anymore and taking him back just made the situation worse, it becomes a wrestling match. I am trying to get to the bottom of his behaviour as it seems to be just me it is directed at. He is well behaved at school, has lots of friends, plays well and is not half as aggressive with my spouse and is a very good big brother. I can't think of anything that has changed in the household over the past 6months that would make him behave this way. Having spoken to him I get a mix of reasons, he doesn't want to, he's tired, he doesn't like leaving me when he goes to school. I really need help on how to deal with the aggressive behaviour, how do I get him to calm down in the moment and get him to complete the simple request? Talking, reasoning, timeout does not work anymore. What do I do, when I'm being hit, kicked etc I have a little girl who is learning the behaviour and need to consider her too, so I can't remove myself from the room.