my son is 2.5 and he is a bugger. We have a time out spot and 3 warning system and if none of those work its a gentle smack on the butt and a talking too. Each kid is different. sometimes u gotta be super tough to get the message through. With my son you need let him know whose boss and that u wont take any of his crap. Super nanny blah! it may work on telly but in reality. You just gotta try alot of different ways to find what will work for u. And sometimes that means taking away toys or tv for a few mins etc