The passengers on a plane are waiting for their flight to takeoff when two men, both wearing dark glasses, dressed in pilot uniforms, walk up the aisle toward the cockpit. One man is being led by a seeing-eye dog and the other is tapping away with his cane.
Nervous laughter spreads throughout the cabin as the men go by and into the cockpit, close the door and start the engines.
The passengers are all looking around for some sign that this is some sort of practical joke, but there isn't any. As the plane moves faster and faster down the runway, the passengers at the window seats realize that they are heading straight for the water at the edge of the airport at the end of the runway. As it looks as if the airplane will never take off and will crash into the water, panic-stricken screams fills the cabin. But just at that moment, the plane suddenly lifts smoothly into the air.
In the cockpit, the co-pilot turns to the pilot and says, "You know, Bob, one of these days, they're gonna scream too late, and we're all gonna die!"