He's what is called a "strong-willed child". My oldest boy of 3 boys is EXACTLY like that. He's six years old now and is no different (sorry) after all of our years of trying anything and EVERYTHING. I finally had to bring him home from school and homeschool him because he was constantly coming home with notes saying he's always out of his seat or he keeps leaning back on his chair or climbing on the table...He even started tying his and his friends' shoes to the table and even cutting holes in his pants (that was because of boredum during literacy time, though), and he went to pre-k, so he knew what was expected out of him, but the same problems then even. Despite ALL of our efforts, he's the same as when he was 1yr old but just a LOT smarter. He's extremely advanced too, and a larger portion of strong willed children are. All I can tell you is to be creative with your punishments and try to find punishments that fit the crimes. Once, and this actually worked, I'd gotten SO fed up with my son not being still when we'd go out to eat. So, after having enough of it and exhausted from fussing at him one Sunday, I took his chair away completely added an extra table to our table and put him on the far edge of the other table away as far away from us as we could but not on the end where he would be looking at us the whole time. I told him that if he wanted to eat with the family then he had to learn HOW to eat with the family and I wasn't putting up with it anymore. He ate like that the whole meal (even though I truly didn't think it'd bother him), he was REALLY bothered by that. People were staring at me for making my child stand away from us the whole entire meal, but it worked. Also, when he was 3, he choked one of his friends in preschool and my husband made him eat chicken noodle soup and water every meal for 3 days while we ate all of his favorites. My husband told him that he made that little girl's throat hurt and that she was probably having to eat that, so he had to too. That actually worked too. He never choked anyone again (Long story why he choked, but it was his aunt who taught him that a few days earlier...not doing it to him but showing him how to do it...idiot). You just have to get really creative with those kids, but it gets harder as they get older and THEY come up with more creative things to do.
Fortunately, he's my sweetest, most helpful young'n of all...He'd have to be. I just wouldn't know what to do if he was like he is AND ugly and nasty all of the time (Though, he does have his moments, and btw, he is VERY destructive because of his constantly flipping, jumping, running, etc...broken pipes, broken windows, broken entertainment center, couch, etc...) Good Luck! Love on him as much as you can because that's what will help you keep your sanity the most, and the days will fly by SO fast you'll be wondering how in the world he turned 6 all of a sudden.
K.
SAHM of 4 (3 boys 6, 5, 3 & a princess - 9mths)