I'm not an expert on the subject, but I remember when I was younger, every time I would be disrespectful to my grandparents, or any adult for that matter, my entertainment would be cut off. That meaning I wouldn't be able to watch TV or play video games or go outside and play with my friends. I have to say, it worked pretty good. Just don't be aggressive with your child. Let them know exactly why their toys or other "fun times" are being taken away. Try to make the child understand what he or she did wrong.