[Fast Food Knight]

[ QUOTE ]
This is pretty excellent advice I feel (apart from letting him keep it, like suzzer said, his reward is you dont tell his parents).

[/ QUOTE ]

Agreed. Excellent post by By-Tor. However, I think letting him keep the money is crucial. The act of generosity here will have a more profound impact than taking the money back. He will feel really guilty (assuming he is not a crappy person) and will NEVER forget about it. It also teaches the kid a lesson on forgiveness and generosity.