so funny! That won't last long though. Really though, I think just saying, "teaching you the right things to do is not naughty" and then move on is probably your best bet - like I said, he'll get it eventually. I can't tell you how often they do stuff like that - things that just irritate the heck out of most normal people - but not me, I find it all quite humerus mostly, I have to stifle laughter and act stern quite often with mine (and used to with my students all the time too).