rsphoto was telling me about someone in his area who is on the sex offenders register for photographing his own son in a swimming pool.
We where offered the chance to do a shoot for a playgroup fundraising event. We ended up not doing it and one of the reasons I didn't want to do it was I have no desire to put myself in that position.
They had the neccesarry legal forms saying we where there to photograph the blighters but even then I still wasn't really comfortable with it.
Luckilly this doesn't actually come up much in my photography as I can't stand photographing people
Not quite on topic but a while ago I saw a TV program which was discussing the negative aspects of this mania. They did an experiment with an obviously upset child on the street. Basicly women would ask her if she was ok, the vast majority of men would keep walking. The upshot being that kids could get seriously hurt because of the social attitudes whereby men are afraid to approach kids - even ones obviously in distress.