I never tip at a buffet. I rarely go anyway because they are overpriced -- $25 or more for food that's been sitting there a while (I guess some of that $25 is for food that is wasted) or $20 for a restaurant that prepares only what I want and only when I want it? And the buffet employees should be tipped on that $25? LOL yeah right!
buffet = McDonald's <> sit-down restaurant with menus and servers