Wow, some of you commenters are AWFUL! See- SOME of you. Not ALL commenters. Because you're responsible for your own behavior, not that of all other posters.

BlueSue, you have an issue with black women drinking Riesling? Seriously? How is preference for German wine related to race? It's unfortunate you witnessed fights, but you were not "bitten by dogs" for 6 years. It's notes like fussing about wine choices that reveals your racism.

As people have noted, lots of different types of people are rude customers- old people, young people, rich people, poor people, city people, farm people, large groups, single diners. What do we learn from this? NO particular characteristic is associated with being a poor customer, so if you want to earn tips, treat EVERYONE well! You're in the service industry, that's your job! If you think you're seeing a 'pattern', you're not, because your own experience disproves it!

I love to dine out, and I've had every kind of server imaginable. Guess what- the ones who offer me nicer service get a larger tip.

It's a "private" bus as in "private company with a public contract, to serve the public".

Therefore, outta my way when I take a seat in the first row. "Separate but equal" is not an option.