Quality Men's Ties

A man rode through the desert on his camel. But the desert was merciless, his supplies ran out and even his camel gave up. On foot he continued his painful journey. He desperately searched for some source of water. Suddenly, he came across a merchant in the middle of the desert.
'Thank God you are here my friend!' he cried. 'Please help me, I am thirsty, I need some water!'
'Well,' said the merchant, 'I cannot give you any water. But would you like to buy one of these quality men's ties?
'What am I supposed to do with a tie? I cannot drink that!' the man was disappointed.
'I sell quality men's ties, sir. I can't help you if you don't like it.'
The man continued and walked on for many more miles under the scorching sun, with the hope he will find some shelter and water. Finally he saw a restaurant in the distance. He thought that was only a mirage, but wanted to check it out anyway. As he opened the door in amazement, saw that the place was real.
'Sir, excuse me,' the doorman stood in front of him, 'but you only allowed to enter here with a tie!'