A blind man walks into a restaurant and sits down. The waiter, who is also the owner, walks up to the blind man and hands him a menu. "I'm sorry sir, but I am blind, and can't read the menu. Just bring me a dirty fork from a previous customer, I'll smell it and order from there." A little confused, the owner walks over to the dirty dish pile and picks up a greasy fork. He returns to the blind man's table and hands it to him. The blind man puts the fork to his...