An airplane is coming to land at an airport obscured by fog. Visibility is practically nil, the radar system is on the blink, so the pilot has to land on wits alone.

"Flaps, check," he says to the co-pilot, "Landing Gear, check. Altitude, check. Right, we're going in. Hold on."

The plane lands and comes to a screeching, grinding halt; just short of the edge of the runway.

"Holy Cow!" exclaims the pilot, "This must be the shortest runway I've ever landed on!" The co-pilot looks left and right and says "Yeah, and about the widest, too...