It seems that about every other time that I use the “self scanners” at Meijer (regional grocery chain) it cheats me. Either it is a coin that doesn’t register or it short changes me.
Today, it stole a dime. I put in the dime but it didn’t register. When I pushed the coin return, it didn’t return. It just vanished into the machine.
Some times, if I am really annoyed by the machines, I will protest. Other times, if the amount is small, I will just let it pass.
These machine must be real money makers since the overhead is lower and they can bilk money from their customers. And, I have never been given too much change. That always seems to work right.
So, it is a “win win” for Meijer. The best that the customer can hope for is to come out “even” in the transaction.