See, I come from a different side. I worked a number of minimum wage jobs that were not tipped and never understood why my work wasn't worthy of a tip, and someone else's was. I was out in the 100 degree heat washing and vacuuming rental cars, and at the restaurant next door, someone was making the same wage in air conditioned comfort and getting a tip. Once I was out in the professional world, my rule of thumb was always I don't tip someone making more than me. Not sure about now with no money coming in for a couple of years, and living off savings.