Good point. I never thought of it that way. I’ve asked around our town and they say foreigners are the worst tippers hands down. Especially Canadians. Maybe they don’t tip as much up there and don’t know what is correct here. If the service is horrible, I will drop the tip down to 10% but it has to be really bad.
We went to a Tex-mex restaurant on Mother’s day a few years back. It was not that crowded, and the service was soooo bad. I had to get my own refills. It took several hours to get our food. People that came after us were served before us. The staff was unapologetic. My husband took care of the bill, but I probably would not have tipped on little bit for that meal.
I’ve also noticed that you get better service when the economy is bad.
A restaurant owner in upstate NY told me the following joke:
Q: What's the difference between a canoe and a Canuck?
A: Canoes tip.