[QUOTE=kutulu]Not if you ever want your food on time again...
I have a philosophical difference with that. I know you were joking (sort of), but I consider tipping to be akin to blackmail.
What if the philosophy spreads? Tip the cable guy or he won't show up next time to fix your cable? Tip your doctor or he won't write you a prescription? Tip the guy at the gym for giving you a towel that's clean? Tip the guy at the movie rental place for renting you a non-scratched DVD?
I'd prefer to know the up-front, out-the-door price on my goods and services, even if it's higher, and dispense with the additional reward system for the person to do his job properly.
Now if we could just do the same for our elected representatives. (Oops, politics.)