I wanted $20 cash back on my purchase. I kept entering 20.00 and it wouldn't work, about 6 or 7 times. The tall, dark haired cashier reached over and "fixed" the problem. It then worked and he gave me my receipt and said thank you. I said where's my $20 cash? He mumbled a quiet sorry but I believe he knew exactly what he was doing. He was getting me flustered and there was people behind me and was hoping I forgot the $20. He does that for a living, there is no way he didn't do it on purpose. I did like the car wash and free vacuums.