This reminded me of something.
I was at a concert this past summer and we went up to get a bite to eat at a concession stand (they use Aramark for their food services.) It was a bit of a cluster (because they were just opening for the night and there was already a line) and the people working the stands, especially the cashier, couldn’t have been much worse (rolling eyes and making rude statements; not giving the right food products, etc).
So cashier finally rings up our order and the “tip suggestions” window comes up on a big screen. While I was thinking about it, DS reached over and hit the “20%” button, to help move us along. I was like, “What are you doing?”
He didn’t realize. I was planning to decline.
Meanwhile, DD went over to get some wine at another stand. The guy gave her a warm/unchilled bottle of wine and no glass. She asked for a glass, and he looked around and handed her one that was visibly covered in pollen. When the same tip window came up and he actually directed her to tip, she declined, and he got mad. She came back upset about the interaction.
It does feel like a lot of pressure when the screen is staring you in the face and the person behind it wants a tip!