Jonathan Deutsch, Ph.D. is our Advice Guy and Professor of Culinary Arts and Food Science at Drexel University in Philadelphia. He is the author of six books, including They Eat That? A Cultural Encyclopedia of "Weird" Foods (ABC-CLIO, 2012).
As long as guests don't arrive in even numbers, in perfect 15-minute intervals, and tip 25%, there will always be winners and losers during a particular service, Advice Guy says. Here are tips on setting a fair policy.