i guy in the desert has run out of water, so making his way over a sand dune, he sees another man and asks him if he can spare some water,
the other man said "no but i can sell you a tie"
the thirsty man didnt want to buy a tie, so off he went on his way,
over the next dune he see an area with palm trees and a building,
as he got closer it looked like a bar or a club,
as he got to the door and asked if they had any water spare,
the doorman said "sorry, the rules are, you cant come in here without a tie"