I went to a little coffee shop in a museum the other day. I ordered a little sandwich from behind a display, as well as some tea. When I put my card in the machine, the gentleman taking orders immediately said, "press here, just press one of the buttons here," jabbing with his finger in the directions some on-screen buttons for adding a 15, 18, or 20% gratuity. It's true that the buttons weren't very noticeable but I was still taken aback by his forthrightness. I left a tip anyway, but then he handed me a pre-made sandwich, an empty paper cup, and a tea bag; and curtly announced, "Hot water's over there. Next!" So not only had he insisted upon a tip but he wasn't even planning on preparing my beverage. If people wonder why customers get turned off of tipping it's because of entitled people abusing the process. He did nothing but ring me up, but he was expecting the same tip as a full-service table waiter.