An old man couldn't find a job, so he decided to open a medical clinic. He put a sign out front that said, "Get treatment for $50, if not cured get back $100."
A local doctor thinks this is a good opportunity to both show up the old man and grab $100, so he visits the clinic. Posing as the patient, the doctor tells the old man, "I've lost my sense of taste."
The old man says to his nurse: "Bring the medicine from box number 22 and place 3 drops in the patient's mouth." The nurse placed the drops on the doctor's tongue.
He begins spitting and yells, "Hey, that's not medicine, that's gasoline!"
The old man says, "Congratulations! You're cured! You have your taste back, that will be $50."
The doctor is annoyed at loosing to the old man and after a few days he returns, even more determined to get the $100.
The doctor says to the old man, "I seem to have lost my memory and I can't remember anything."
The old man tells the nurse: "Bring the medicine from box number 22 and put 3 drops in the patient's mouth."
The doctor immediately protests, "But that's the medicine for the sense of taste!"
The old man says, "Congratulations! Your memory is back! That will be $50."
The doctor leaves, even madder than before. After several days, the doctor is even more determined to show up the old man and get his money back. When the doctor enters the old man's office, the old man asks, "So what seems to be the problem?"
The doctor says, "My eyesight has suddenly become very weak, I can barely see anything."
The old man says: "Well, it seems that I don't have any medicine for that, here, take this $100 and go."
The doctor immediately protests, "Hey, this is only a $10 bill!"
The old man says, "Congratulations! Your eyesight has returned! That will be $50."
