I agree about the time out. Never worked for any of ours. The best thing we found for our son was taking "stuff" away. He was immune to spankings. POed him off more than anything, but didn't have much effect on him. Our youngest daughter using a slight swat on her son (2 in Sept) and he knows - he also can tell by her tone of voice what may be coming if he doesn't quit. He is a good boy. Grammaw has to go down in September and spoil him. LOL
My daughter was different. She just could hardly seem to go to bed at night if she hadn't gotten a spanking. That might be a slight exageration. She would push me, knowing what the result would be. Afterwards, she'd be fine. She was a good kid and other parents often commented about how well behaved she was. Others thought I was too strict. Interesting that the ones who thought I was too strict usually had kids that were unbearable to be around.