He takes his seat, gets the test, stares at the questions for five minutes, and then in a fit of inspiration takes his wallet out, removes a coin, and starts tossing the coin. For "Heads" he marks "True" and for "Tails" he marks "False."

Within half an hour, Walker is all done whereas the rest of the class is sweating it out. During the last few minutes, he is seen desperately throwing the coin, swearing and sweating.

The moderator, a little alarmed, walks over to him and asks him if he's ok.

Walker spits out, "Yeah, I'm ok. I finished my exam in half an hour -- but I'm not going to have time to check all of these answers!"