A tie salesman was passing by in Arizona when he saw a man crawling in the desert and calling out to him, "Water! Water!"
Without paying any heed to him, he bent over and tried to sell the man a tie. The man shook his head and simply repeated, "Water! Water!"
After trying very hard to sell the man a tie but to no avail, he just left him where he was.
A mirage then appeared before our man in the desert. The man crawled rapidly towards the mirage and eventually found himself at the entrance of a plush hotel. At the door was the tie salesman.
"Water! Water!" he cried out again.
The salesman answered, "You can't enter without a tie."