The best is when you see a mom go to pick up their kid, their shirt rides up in the back and you see the tattoo they probably got one drunken night on Spring Break back in college.
You know they totally regret the tattoo after ten years and the other moms in the PTA secretly laugh at her behind her back. Her husband who loved it when they meant because he figured she was going to put out quickly is embarassed as hell but doesn't want to pay to have it removed cause he'd rather see her get an obnoxiously humungous boob job instead which he will end up being embarassed about when he catches her fucking his brother.