I suppose I'm going to get jumped all over for this, but ... if you are in the employ of a school board and working with the kids, there are some things you just don't do. You don't tell them about your sexual fantasies, you don't give them the details of your wild weekend, you don't sell them cigarettes, you don't tell them mailicious gossip about their teachers, you don't use foul language in front of them, and you don't make obscene gestures to people you don't like in front of them. If you're determined to do any of those things, you probably run the risk of being fired. Tough luck.