Joe goes to consult a world famous specialist about his medical problem. After the visit Joe asks, "How much do I owe you?"
"My fee is five hundred dollars," replies the physician.
"Five hundred dollars? That's impossible. No one charges that much!"
"In your case," the doctor replies, "I suppose I could adjust my fee to three hundred."
"Three hundred dollars? For one visit? Ridiculous."
"Well, then, could you afford two hundred?"
"Who has that kind of money? Do you think I'm Bill Gates ?"
"Look, replies the doctor," growing irritated, "Just give me fifty bucks and get out."
"I can give you twenty," says Joe. "Take it or leave it."
"I don't understand you," says the doctor. "Why did you come to the most expensive doctor in New York if you have no money?"
"Listen, Doctor", says Joe, "When it comes to my health, nothing is too expensive."