Airport Security alerted an airline crew to keep an eye a
blonde passenger who appeared excessively nervous and
shifty-eyed. Soon after takeoff, the blonde man called a
stewardess to his seat and said, "I have a live grenade in
my pocket. I'll blow up the plane if you do not divert to
Cairo."

Perplexed, the stewardess said, "But, sir. This is TWA
flight 1219 to Cairo."

"Damn!" replied the blonde passenger, "I got on the
wrong plane."