Eddie, several credit card scams are exposed on YouTube. The waitperson will fumble and pretend to drop the card on the floor, in plain view, while actually having a card reader under his/her apron or at the ankle. While bending to pick up your card, they will quickly scan it. Even when caught on surveillance cameras it is difficult to see. They also memorize the 4-digit bank code. Several very clever scams are exposed on YT.