This thread reminds me of a cartoon I saw many, many years ago.

The cockpit door is open, and the pilot and co-pilot are non-chalantly walking down the aisle (hands in their pockets, casually whistling, trying to look inconspicuous) toward a rear door on the plane ... with parachutes on their backs.

If I saw someone coming on a plane with a parachute, I would seriously wonder if that person knew something that I didn't ... something that I should know!