firecat

The only tip-related thing I can remember getting annoyed about when I was waiting tables was a guy repeatedly saying things like "run and get it right away and I'll give you a big tip!" in an exaggerated, patronizing way to make his companions laugh (BTW, no tip from him).

At the time I basically considered myself above taking much notice of tips, but if it hadn't been one of the few times in my life when I wasn't always broke, I might have felt differently! Definitely some of the friendliest customers (stereotype alert: Canadians) didn't tip at all.