Yeesh. I'm rather happy that the most oppressive thing that happened in my all-girls (Catholic, mind!) high school was watching a nun put a condom on a banana, then tell us that we should never, ever do this. It was like sex ed by passive aggression. It was mortifying then, but my hindsight tells me that since the nuns weren't allowed to teach us about birth control without lambasting it, that was the only way they could teach us to learn things properly.