[HairOfTheDog]

Just calling it as being weird to me.... If I were with you, I would be dreadfully embarrassed. For the people that are having to pander particularly. I don't like treating people that are serving me like that. They have a job, just like me. There are a few service industries where tipping is the norm, waiting tables and bartending just being two, the other main one for me being hairdressers... The good ones try dang hard to be good, the bad ones aren't gonna be better because you have dangled a treat before them... I bet you get the same service you would have gotten otherwise, you just made the good ones feel beneath you when they shouldn't be.

[Just another Joe]

They have a job, just like me.

And they get paid for that job. It may not be what they, or we, think is enough but they do get paid.
A tip is for going above and beyond the job.
20% is a decent tip. If I do a good job I get a annual bonus. If I don't I don't get a bonus. It's called incentive.
I don't mind giving an incentive for someone to do a good job.

As for being embarrassed, I save that for when I really make a faux pa. Like spilling my vodka. ;^)