Quote from Ross in The One with the Soap Opera Party
Ross: Well, we should probably get going. We've got a lot of ground to cover. Charlie: Isn't another professor supposed to come with us? Ross: I don't think so. Charlie: I'm pretty sure. A Professor Spafford from Cornell? Ross: Well, he's obviously late, and the rule in my class is: If you can't come on time, then don't come at all. An option that many of my students use.