For a real spectacle, do as my wife and I did once..In a hurry we made an error and GROSSLY overtipped in a local Chinese restaurant. The waiter flipped out, made a little speech and bowed from the waist...I never saw anything like it.
Another time, on my first visit to England, we picked up the tab when our hosts took us to a nice place. A wonderful meal, but by the time I got to the stilton and vintage port, the jet lag plus the sozzling effects caused me to make a disasterous conversion with the funny-looking money. I told the waitress to keep the change. The young waitress came back to the table, flustered, "Sir, you left 150 Pounds!"
"Did I short you?"
""NO!..But..."
"Fine."
"...At least let me bring the dessert cart back!!!"
My host, outside in the parking lot, jokingly told me she probably would not bother going into work for a day or two, or perhaps I should come back after she gets out of work...
So the next morning, it was kind of a double hangover. Oh well, that's what vacations are for....
But we know a few waiters and waitreses socially; Frankly, the job sucks, and I would not want to do it. From my posts anyone can tell I am not always the most "Dale Carnegie" person around, and I would probably not even last an hour were I to try it.