"Fine, I'll say it. I always thought that pads operated like Band-aids and they'd just slap em over their vaginas and absorb everything. It wasn't until I was... 27? When my girlfriend at the time had some as a backup in case she ran out of tampons and I opened it and looked. The adhesive was on the wrong side for my version of how they worked, and it dawned on me that they're supposed to be stuck to their panties, not their vaginas. I only regret telling her of that revelation, because she laughed until she cried and then called her mom to tell her about it."