In theory, I think it's a hilarious thing to do if you aren't setting them up for legal trouble unbeknownst to them. If, there is a chance that they're going to see legal repercussions because of that, then I think it's just a petty, dick headed move. If you are in fact that worried about them just being takers, when they come around this year be a grown up and just tell him that it's going to be 25 bucks a cut or something along those lines. Or, I don't know, just talk to them. But, Once again, if there are no legal repercussions in play, I think it is absolutely hilarious.