(Its 5 in the morning and two guys have obviously been overworking for at least 10 hours)

Guy 1: How did you study for the calculus final?
Guy 2: Well, my friend took the course and he failed it
Guy 1: What are you talking about… what does your friend have to do with it
Guy 2: I said I took it. Who are you talking about, which friend?
Guy 1: You said that your friend took the course and failed it.
Guy 2: I never said that.

-Burnside at 5 am