An old geezer became very bored in retirement and decided to open a medical clinic.

He put a sign up outside that said: DR. GEEZER'S CLINIC. GET YOUR TREATMENT FOR $500. IF NOT CURED, GET BACK $1,000.

Doctor Young, who was positive that this old geezer didn't know beans about medicine, thought this would be a great opportunity to make an easy $1,000. So, he went to see Dr. Geezer.

Dr. Young: "Dr. Geezer, I have lost all taste in my mouth. Can you please help me?"
Dr. Geezer: "Nurse, please bring medicine from box 22 and put 3 drops in Dr. Young's mouth."
Dr. Young: "Aaagh!! This is gasoline!"
Dr. Geezer: "Congratulations! You've got your taste back. That will be $500".

Dr. Young gets annoyed and goes back after a couple of days figuring to recover his money.

Dr. Young: "I have lost my memory, I cannot remember anything."
Dr. Geezer: "Nurse, please bring medicine from box 22 and put 3 drops in the patient's mouth."
Dr. Young: "Oh, no you don't! That's gasoline!"
Dr. Geezer: "Congratulations! You've got your memory back. That will be $500."

Dr. Young, now down a cool $1000, leaves angrily and comes back after several more days.

Dr. Young: "My eyesight has become weak - I can hardly see anything".
Dr. Geezer: "Well, I don't have any medicine for that so, "Here's your $1000 back."
Dr. Young: "But this is only $10!"
Dr. Geezer: "Congratulations! You got your vision back! That will be $500."

Moral of story: Just because you're Young doesn't mean that you can outsmart an old Geezer.

Classic.