On a bustling pavement in an American city, two policemen are bored. One of them takes out his weapon from its holster. He says to the other:

"I bet you I can spin my gun three times around my finger like a cowboy!"

Game on. He spins his gun around his finger, but all of a sudden, it goes off.

The presidential limousine was driving by at that precise moment, and we see a panicked Jackie Kennedy grabbing the rear boot, as sirens blare and bodyguards run towards her.