Billy: You're so witty...
Jennifer: So why is the face tilted to the right?
Billy: This watch is supposed to be worn on your left hand.
Jennifer: So it's not as convenient for left-handed people?
Billy: It's better for right-handed people like me. See, I don't even have to move my arm to see the time.
Jennifer: I'm left-handed. You bought that watch so that I won't borrow it...
Billy: Bingo!