Folks aren't kidding when they talk about waiters, waitresses, and cooks inserting their own bodily fluids into the meals of less-than-pleasant customers. It really does happen! So what kind of behavior will set them off? Let's discuss!
First of all, never whistle or snap at your server to get his or her attention. Don't do it. They aren't dogs. But if you treat them as such, they just may bring you a special "treat."