Me: “OK, we’re doing course evals for the first part of class today. Put down your answers to the questions, tell me what you thought about the class, what was useful about it, what wasn’t, what could be improved, what you thought about my teaching, what could be improved,” et cetera.
Particularly smart student: “Do our answers affect you?”
Me: “Sure. And I don’t see them until after final grades are in.”
Particularly smart student, holding back a grin, in that kind of I-dare-you half-ironic tone: “So what are we doing for the rest of class today?”
Me, airily: “I’m giving away free money. And beer.” Big smile.