In the nurse's office at my school, there's a pamphlet that I should totally take home and scan sometime. It's lulzy.
The cover asks you to write the number of sexual partners you've had.
Then on the inside it's a diagram to show the effect of "zomg so many people have been smashing their bits together with so many other people and DATS ICKY!"
It goes on to explain on the back cover that the only "safe sex" is 1) abstinence or 2) waiting until marriage. Because it's not like condoms exist or anything.