dear strom, I'm not against you but let me explain my point of view: waiters working in restaurants rely on tips, for the same reason owners of (small) restaurants may charge some extra fee if the customer seems to be not on strict budget: IMO is more or less a little bonus you are willing to give if you like the place and the food is good and not expensive.
If you want really to be ripped off all your money by restaurants, taxi drivers, and hotels please do visit europe capital cities ( expecially or Italy and France) as a tourist and let me know.