An engineer could not find a job, so he opens a medical clinic with a sign that says
“Get Cures for $50, or Get $100.”
A doctor thinks this is a good opportunity to show up the engineer and earn a quick $100. so he visits the clinic, claiming to have lost his sense of taste.
The Engineer asks his Nurse to bring the medicine from box no 22 and place 3 drops in the patient's mouth.
Patient (doctor): spits out the medicine, saying "This is not medicine, its gasoline".
Engineer: Congratulations, you have your taste back. That will be $50 please?
The Doctor annoyed, returns after several days to recover his money, this time claims he has lost my memory and can't remember a thing.
Engineer: Nurse, please get box 22 medicine and administer 3 drops in the patients mouth.
Doctor: "That medicine is for the sense of taste" protests the doctor.
Engineer: Congratulations, your memory is back.. ..That will be $50
After several days the Doctor, now very angrily, returns for one last try, this time claiming his eyesight has become weak.
Engineer : I don't have any medicine for that. Please take this $100
Doctor : But that is $50 note.
Engineer: Congratulations, your eyesight has got better.That will be $50 please?