My wife is a bookseller. She doesn't get tips. She genuinely likes her customers... most of them anyways. Wouldn't like someone that thinks she's only doing it for money since she gets paid whether she's nice or not, but she would still be nice to them.

Maybe some people really do take pride in their work. Worth trying sometime maybe?

they charge my $60 bar tab for $20 and get tipped $20. then the bar closes and we hang out at the bar drinking for free. you should only comment on things that you know about. sorry you don't have the same experience