Ahmed the Arab came to Sydney from the Middle East, and he was only there for a few months when he became very ill. He went to doctor after doctor, but none of them could help him.
Finally, he went to a Jewish doctor who said:
“Go outside, open the manhole of the sewers, put your head down and breathe in the fumes for ten minutes.”
Ahmed went outside, opened a manhole, bent over and breathed in the fumes for ten minutes.
Coming back to the doctor he said, “It worked. I feel terrific! What was wrong with me?”
The doctor said: “You were homesick .”