Looking for a little guidance. I've hired a private chef (not a catering company) for an upcoming event. He's got a couple of assistant chefs as well. He's being well compensated - his assistant chefs are earning between $35 and $40 per hour and he's earning $50 an hour. He does not charge an auto-grat. They are not providing serving/bussing/bartending services. So the question is, am I expected to tip them? I figure I normally tip people like servers who earn close to minimum wage, whereas these people are earning a very generous hourly rate. At the same time, I don't want to be stingy.