I dunno, maybe hitting him was what made lil Johnny Cockpuncher a lil jerk in the first place.
Take away his electronics for a week. All of em. No phone, no tv, no computer (unless schoolwork) and no game systems period. Any cheating and the clock is reset to a week. He can ask mom or dad to put on some nice classical music. I am sure that family would love to listen to the classics (Bach, Beethoven, Brahms, ok mb Booker T and the MGs too).
Do I really need to put the /sarcasm tag there?