One word, retail. Nothing is worse than customers who A. Cause a ruckus B. Argue over signs they fail to read C. lie to save a few pennies.
I once had a couple who put their child in a cart and use her as a diversion in attempt to steal several hundreds worth of product. The little girl had no idea what was going on and was just enjoying herself in the store. She didn't even see her mom and dad tearing through packages and taking things. On their way out, the mother started screaming (and I mean SCREAMING) at the little girl out of nowhere. She began crying and saying, "I didn't do anything! What did I do wrong mommy?", poor thing looked so confused. The mother was making a huge scene about how she had to leave IMMEDIATELY (with our stolen goods) because her little girl was "misbehaving". Of course our security cameras told a different story as we saw the little girl hadn't done anything wrong. Hard to believe people would put their own kids on the line for a couple of sheet sets. We sell bedding in my store.