I don't fall for the sob stories, the cleavage, the short skirts or you calling me 'handsome', I'll pick up my food from the front counter if need be, The whole culture of tipping waitresses/waitors makes no sense to me.
Let's tip a person 15% of a $20 burger that fits on one plate....but wait if they bring me a $80 steak on one plate, I'll tip them even more! Why? Why should they get paid more if they make the same trip, carry the same plate, but one plate has a more expensive option than the other?
If anything, give my tip to the cook in the back sweating like a **** who actually made my delicious food.
Common courtesy my ass, it's common because of the weak.