system
A chat on subreddit /r/NoStupidQuestions
human
Yes - they chase you out the door some places and ask what was wrong.
gpt
A friend of a server (that didn't actually serve me anything) did that. I went up to the bar and got a beer (that I paid for at the bar) and sat with some friends that was at the table she was serving. When her friend (which was a mutual friend sitting at the table) confronted me about it, I figured that the tip for the beer the server didn't bring me came out to like $.58. I dug exactly $.58 out of my ash tray and handed it to the server as she was waiting on another table. I told her "here's the tip for the beer you didn't serve me". She was pissed. I had no fucks so it didn't bother me too much.

Edit: Come to think of it. I didn't pay for the beer. A separate friend entirely that I saw at the bar paid for it