Childrens clothing used to be on the reciept as "young boy" or "young girl".
Just gives you visions of someone walking up and placing a toddler on the counter and saying "I'd like to return this...."
(or the other comment from customers as it came up on the till customer screen was "you can buy children that cheap? hah, I'd give you mine for free!")
The first one just conjures to my mind the image from opening of The Simpsons of the cashier accidentally scanning and bagging Maggie.
The second reminds me of my father on the beach in Florida and Cape Cod in the Seventies, walking up to people on the beach and offering to rent them his children. When they protested that they didn't want to pay to take his children, even for a short time, he would say with an absolute straight face, "Oh no...I'll pay YOU!"
It's a wonder we turned out anywhere near normal. Oh, wait.....shit.