Abdul Hassan was a famous maker of carpets in the reign of the Great Caliph

Abdul Hassan was a famous maker of carpets in the reign of the Great Caliph, who was much admired for his craftsmanship. But one day, as he was presenting his wares at the Court, a frightful catastrophe occurred. When Abdul bowed low before Haroun al Rashid, he broke wind. That night, the carpet-maker closed his shop, piled his most precious wares upon a single camel, and left Baghdad. For years he wandered, changing his name but never his profession and always yearning to return to his beloved city of birth. He was an old man when he at last felt that everyone had forgotten his disgrace, and it was safe to return homeward again. It was night when he finally arrived at Baghdad, so he decided to rest at a convenient hostel before entering the city in the morning. The Innkeeper was talkative and friendly, so Abdul was delighted to ply him of news and all that had occurred during his absence. They were both laughing over court scandals when Abdul asked, "When did this happen?" The Innkeeper paused in thought, then scratched his head. "I'm not sure of the date," He said, "But it was about 5 years after Abdul Hassan farted."
So the carpet-maker never did return to Baghdad.