Everyone squirmed in their seats as they listened to his performance.
Finally, the joker reached the punchline, which he bungled.
No one laughed... except Nasruddin.
Later, one of Nasruddin's friends asked him, "Why did you laugh at that joke? It wasn't funny at all."
"You should always laugh at the joke," Nasruddin told him. "If you don't, there's a possibility that they might try to tell it again."
Inspired by: The Little Book of Sufi Parables by Nico Neruda
Notes: This is story 1 in the book. This belongs to the genre of "Nasruddin-in-the-coffee-house" stories.