About 5 years ago at a moderately priced Indian restaurant in London I noticed that the menu said that a 15% service charge would be added.

After a very average meal with very average service the bill was presented with the waiter telling me quite clearly "service not included". When I examined the bill I could see that 15% had already been added. I told the waiter this and he bluntly said "we don't get that". I explained that wasn't my problem and left.

I've never been back, and nor would I. Further I've advised others about the place. Rip off.