Moms are jerks. Need proof? Check out this sign a mother left for her 13-year-old kid regarding his habit of cleaning the custard all over her towels.

Forget about embarrassing the kid (who will now think about his mum and that note every time he pounds one out) she's more concerned with her $5 Target bathroom linens. Also, is the Justin Bieber comment supposed to be a threat? What if the idea of dropping salty yogurt on the Biebs turns this kid on?

Mom needs to show a little more class. She could take a lesson from these much classier requests that people stop slinging homemade number three all over the place.

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