I work as one those operators/cashier of self service check stands. The kind you use at Freddy's or Home Depot etc.. When you ask the machine for cash back and forget to take it, guess who does? That's right, me. Almost every single day, I pocket at least anywhere from $40-$1000 daily on unclaimed money. I've been doing this for over 4 years now at a store to remain nameless. It amazes me how few of you come back for that 20spot you withdrew?! I'd say 1 in 10 come back from their car looking for it, in which case I have it for them.
Mostly people call and ask about it. The calls get transferred to me and then I tell them the same thing. "No, no cash has been turned in". If they want to talk to my manager, I put them through. So far so good as my manager hasn't said anything for all this time.

Thank you shoppers....