RANT: Religion and Masturbation

I recently watched a movie entitled 'Teeth.' The movie (which wasn't very good but I digress), an indie horror with some comedic elements (it mostly failed on both fronts....some of it was amusing, none of it was scary, but again, digressing...), is about a very religious teenage girl who has taken a vow of 'purity' (aka abstinence) and goes around to other schools prattling on to younger kids and other teens about the 'evils' of sex and how it's only right to save your 'gift' until marriage, and blah blah.