Working at a restaurant can be stressful and tiring, to say the least. There can be pushy customers, aggressive managers , and, as Mad TV's Bon Qui Qui once yelled, “complicated orders.” As a server, you have to ensure being on your feet all day every day, along with the limitations of your own memory and the endless lists of dietary restrictions (many of which don't even sound real). And on top of it all, you are expected to smile your way through the pain so that you can maybe, if you're luck…