A new kind of plane was on its first flight. It was full of reporters and journalists. A little while after takeoff, the captain's voice was heard over the speakers: "Ladies and gentlemen, I'm delighted to be your pilot for this plane's historic first flight. I can tell you the flight is going well. Nevertheless, I have to tell you about a minor inconvenience that has occurred. The passengers on the right side can, if they look out their windows, see that the closest engine is slightly vibrating. That shouldn't worry you, because this plane is equipped with four engines and we are flying along smoothly at an acceptable altitude.
"As long as you are looking out the right side, you might as well look at the other engine on that side. You will notice that it is glowing, or more precisely one should say, burning. That shouldn't worry you either, as this plane is designed to fly with just two engines if necessary; and we are maintaining an acceptable altitude and speed. As long as we are looking out the plane, those of you on the left side shouldn't worry if you look out your side of the plane and notice that the engine that is supposed to be there is missing. It fell off about 10 minutes ago.
"Let me tell you that we are amazed that the plane is doing so well without it. However, I will call your attention to something a little more serious. Along the center aisle all the way down the plane a crack has appeared. Some of you are, I suppose, able to look through the crack and may even notice the waves of the Atlantic Ocean below. In fact, those of you with very good eyesight may be able to notice a small lifeboat that was thrown from the plane. Well, ladies and gentlemen, you will be happy to know that your captain is keeping an eye on the progress of the
plane from that lifeboat below."
(Lee Griess, "Taking the Risk out of Dying")