I wait tables at a Japanese restaurant in the Tampa, FL area. Most of our guests tip very well. Unfortunately, between Nov. and Feb. that isn't the case. We have a large influx of people, mostly seniors and Canadians. The seniors usually aren't eating sushi, so it takes a few moments to explain the menu to them. But once they've ordered, they don't usually require any "extra" service. The Canadians are a different story... They speak English to me, then French among themselves ABOUT me... As I understand French, it's pretty insulting. And it's happened more than once. After explaining the menu, I get to answer why we don't serve French wine, "just" California. When their food comes, and has been served, there's usually something wrong with it, or it wasn't what they thought it was. Then, after they've occupied the table for an hour or more after they finish dinner, the pay their bill and leave no tip. I've been waiting tables for a long time, and had never really seen a difference in tipping due to age, gender, or anything like that. But when I moved to Tampa, that changed. I'm sure that not all Canadians are like that, at least I hope not...