The other day I did self check out at the grocery store. I did the cash back option and was supposed to receive 20 dollars.
Because the slot is so low on the machine, I didn't c it and left accidentally without the money. What's neat is what happened next, because this would have never could have never happened in Baltimore!
The manager told me to come back (don't need a receipt!) and she will give me the twenty bucks! ;)