Firstly, big hugs hun. I have an almost 4 year old who loves to test and push the boundaries a lot too. Sadly, what works one day here doesn't always work again, even though I am trying to come up with new strategies all the time. I also pick my battles daily, otherwise some days, I would be telling him off all day long, it's just too draining and exhausting. I try and be consistent as much as possible, but that's sometimes hard to do. I try and reward his good behaviour and always correct his bad behaviour with consequences. Naughty corner worked for just a little while. I suspect that DS doesn't always understand what he is doing wrong. When he is bahaving badly, I explain to him what he is doing wrong, but sometimes he just shakes his head with a 'no', like he doesn't think he is doing anything wrong?? I dunno hun, I wish I could give you the magic answer. I listen to what the psychologist says in his early intervention program, trying to understand why he does the things he does, but it's hard sometimes. Don't get me wrong, he's not always naughty, sometimes he has those random 'crazy' days when he's very hard to talk to/discipline. I know he acts out more when he is trying to get my attention and after some foods, particularly those with the 'bad' colourings. He does seem to behave better with his dad and listens to him more, but then as soon as I'm in the picture, he starts to act out again. Again, sorry I couldn't give you more advice, I would say try and do what the professionals say but also try different approaches and see what works. Do you think he is doing certain things for stimulation? I know my DS is a lot more destructive if he is indoors, when he gets on that trampoline and we go to the park etc, he burns off that excess energy.