There's a reason the great Tina Fey once said that her job producing, writing, and starring in 30 Rock was less stressful than "managing a Chili's on a Friday night." The job is set up to encourage stress: everything you have to do needed to happen five minutes ago, it's a multitasking nightmare, and you're dealing with the public. Often, the public is hungry. Always, the public seems to have gone out to eat because they're not allowed to abuse their families at home. You get the idea: food service is stressful.