You You Xue, the owner of Chez Xue in Foster City, Calif. was exasperated with the seemingly deteriorating behavior of his customers. So he began issuing fines. Last year, Xue noticed a customer was changing a child's diaper at one of the booths in the dining room, he recounted to the LA Times. Shortly after, Xue updated his menu: not with a new dish or seasonal special, but with a warning. Control your children, or you will be fined. Chez Xue will fine parents with unruly children.