People who don't tip are the worrrrrrrssssst. First of all, working at a restaurant is absolutely annoying. You have good hours and bad hours, your day is an emotional roller coaster. I believe it should be a requirement that everyone in the United States work in the food service industry for at least a month. People don't realize the shit they do at restaurants until they're the ones waiting on them. "Of course you can bring your 15 young children!" "Of course you can have 30 sides of ranch dressing!" "Of course I can cut your steak for you!" "Of course you can move from this table to another table right in the middle of your dinner!" "Of course you can tell me it's ridiculous how I haven't checked on you every three minutes; I know I'm a terrible person!" "Of course there isn't an automatically added gratuity on parties of 6 or more anymore because God is cursing my existence and applauding your asshole-ry!" The age old question is: what is the appropriate tip amount? The answer is always dependent on the service (with some exceptions here and there). I can personally say, as someone who has served before, that almost 99% of the time my service is ALWAYS adequate enough to leave a 20% tip. I say this because people are always quick to point the finger at the first face they see and use that as a reason to make someone else's day miserable. Did I greet you in a nice manor? Yes. Did I bring your drinks? Yes. Did I answer your questions? Yes. Did I bring your food? Yes. Did I bring your check? Yes. Did I say "have a great day/night?" Yes. This is the checklist for proper service. If your food comes out wrong, if your food taste bad, if your drink is wrong, or if your food is cold when it arrives----tell your server because these are problems with the kitchen, not the server. They will be more than happy to make it right, and if not, then the manager should be able to. Yes, I agree, they are the face you associate the restaurant with, but that does not mean you shouldn't tip them. I have bent backwards for guests and jumped through 100 hoops to get their "medium well/medium, but with a pink center and cold on the inside hot on the outside, but not too hot" steak cooked perfectly, but there are some people you just can't please and that is not fair. If the service, food, and ambiance is absolutely subpar, servers understand that under circumstances like this, you have reasons to tip under 20%, but to not leave a tip at all is absurd. I've had friends tell me someone left them $5 on a $100 bill. We're in a recession, not a depression. If you have a $100 bill, you can afford to tip at LEAST $10. That's less than half of a recommended tip. Whenever I'm at a restaurant, I always tell people this: When it comes to tipping, keep in mind, these people don't want to serve you just as much as you don't want them as their waiter/waitress, but it doesn't mean you should take away their income.