A man survived a plane crash, and wandered through a desert for days in sweltering heat. He arrives at a little concession stand, with a salesman behind it.

The wandering man says, "I am very thirsty. Please, let me have some water. I will pay you any price for some water!"

The salesman says, "I don't have any water. I'm selling neckties. Can I interest you in a necktie?"

"I am dying from thirst! I need water!"

"Like I said, I don't have any water, but if you walk about five miles east, there is a nice restaurant and you can get water over there."

"Thank you."

"Are you sure you don't want a necktie?"

The wanderer replied, "No, you moron! I have no use for any of your crummy neckties!" and proceeded to crawl east.

Hours later, the wanderer finally arrives at the restaurant. Barely able to speak by this point, he tells the doorman in a parched voice, "Please. Need water."

The doorman replies, "Sorry. I can't let you in without a necktie."