Whew, that wasn't a very relaxing dinner! These quick and intense rain showers have been a pain. We haven't had any server ask out right for a tip, although someone did mention that they could only run a card once, so would not be able to add a tip unless it was included at the beginning. I think that was a manager who came to clear our bill not the server.
most places in europe bring you the credit card machine to the table and there is no way to add tip once it run. I occasionally do get asked that question if i want to add a tip.When I had dinner in december at la piment i did get asked the same question. I guess you can look at it from 2 viewpoints your an american and they expect a tip .Or its for your convience if you only have large bills and dont want to ask for change on a a tip. I try to remember to have a variety of bills so i can leave a tip in cash usually on french side 10%