Two friends are in a bank when suddenly armed robbers burst through the doors waving guns and yelling for everyone to freeze.
While several of the robbers take the money from the tellers, the others line everyone else up against a wall and proceed to take their wallets, watches, and other valuables.
While this is going on, one of the friends jams something into the other friend’s hand. Without looking down, the second friend whispers, “What is this?”
The first friend replies, “It’s the $100 I owe you.”