50 Złoty

A Polish man decides to deposit his heard-earned money stashed in his mattress, so he goes to the bank and talks to the teller.

"I want to make sure my 50 złoty are safe. What happens if someone robs the bank?"

"No worries," the teller replies, "If that happens, the main branch in Warsaw will cover the loss."

"And what if the main branch goes bust? I've heard this can happen."

"No worries, the Polish Central Bank guarantees us."

"And what if our economy fails?" the man asks. "What if the Central Bank runs out of money?"

"It's very, very unlikely that would happen," the teller replies, "but if it did, then our treaty with the Soviet Union means they would cover the losses."

"But what if the Soviet Union collapses?"

"Look, wouldn't that be worth 50 złoty?"