A Doctor tries to make some money off of an engineer An unemployed engineer who was tired of being jobless opens his own medical clinic. "A cure for your ailment guaranteed at $500; we'll play you $1,000 if we fail." A doctor thinks this is a good opportunity to earn $1,000, and goes to the clinic. Doctor: "I have lost my sense of taste." Engineer: "Nurse, please bring the medicine from box 22 and put 3 drops in the patient's mouth." Doctor: "This is gasoline!" Engineer: "Congratulations! You've got your taste back. That will be $500." The doctor gets annoyed and goes back to a couple days to hopefully recover his money. Doctor: "I have lost my memory, I can't remember anything!" Engineer: "Nurse please bring the medicine from box 22 and put 3 drops in the patients mouth." Doctor: "But that's gasoline!" Engineer: "Congratulations! You've got your memory back. That will me $500." The doctor leaves angrily, but returns several days later more determined than every to make is money back. Doctor: "I've lost my eyesight." Engineer: "Well I don't have any cure for this. Take this $1,000," passing the doctor only $500. Doctor: "But this is only $500!" Engineer: "Congratulations! You've got your eyesight back. That will me $500."