So you decided to go out to eat this evening! Congratulations! Instead of staying home and cooking something or ordering delivery, you've chosen to sit in a place with nice atmosphere and have a live person come and wait on you, bringing your food, making sure you are having a good experience, refilling your drinks...that person likely makes minimum wage and is on their feet all day working in a fast-paced environment. If you got your food in a reasonable amount of time and your server was pleasant, you owe them a tip! 20% is generally accepted as reasonable but 15% is also acceptable. Anything less than that (or no tip at all providing above conditions were met) means you are a cheat S.O.B and should stay home to eat next time. —Serving up some truth