Don't get me wrong now. I do tip over here but only if the waiter/waitress was polite.
And tipping is common enough here but I suppose it's not as widespread or ingrained as NY.
It's funny. I just had a college lecture this week about this exact same subject and it was interesting hearing it from a French, South Africa, German or Spanish perspective.
Supposedly, the Spaniards are the worst at tipping abroad.
I invoke my right under the 5th amendment of the United States constitution and decline to answer the question.