McGonagall: You said you had nothing to do with that prank. Are you lying to me?
Sirius: That depends on how you define lying.
McGonagall: Well, I define it as not telling the truth. How do you define it?
Sirius: Reclining your body in a horizontal position
McGonagall:
Sirius:
McGonagall: Get out of my office.
Sirius: Absolutely.