Two separate high school teachers pointed out that men prefer to marry virgins. The second one used a piece of tape against the blackboard to illustrate how sex with more than one person caused a woman--I cannot believe I am typing this--to lose her ability to bond with a husband, which is similar to how women bond with their children, while sticking it and removing it from the chalkboard in a live-action sequence to show how bonding is like tape, and sex is like chalk powder.
This. Actually. Happened.
She was my Spanish II teacher, I was a senior, I have no fucking clue what the hell that was about. She also talked with truly unnecessary detail about waxing. The first teacher who was on the virgin kick was a football coach who taught health.
Granted, it does not lessen the power of this memory to share it, but I feel better knowing that image is now implanted on other people's minds. Tape = bonding, chalk dust = sex.