Rule #497: Please do not scream, “You’re not my mommy! You’re not my mommy!” as I try to pick you up from the floor of the toy store while you are having a tantrum, and then cling to me in fear when you see mall security coming.
Thanks, Andrea K. (who bravely admits, “Fortunately for me, my child has not done this. Unfortunately for my mother, I did.”)
Rules by the Meanest Mommy in the Whole Wide World 
My middle child would do this. I talked with a police officer and they advised having frequent “family” photos, to prove that I am the mommy.