One day a young man was visiting the fair, over to one side was a small tent, with a sign that said "For 50 dollars I'll teach you to be a mind reader! Apply within."
So the young man thought that he'd give it a go, and went inside. Behind a small table inside was an old man, who looked up when the young man entered and says, "Ah, you must be here for the mind reading lessons."
"Well, yes" the young man said.
"Well, follow me, and I'll give you your first lesson." Then the old man goes out the back of the tent and walks over to a hose, which he picks up one end of. "Here, hold this hose."