A G.P., now an old geezer, became very bored in retirement and decided to open a medical clinic. He put a sign up outside that said:
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 get £1,000. So he went to Dr.Geezer's clinic.
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 is Gasoline!"
Dr. Geezer: "Congratulations! You've got your memory back. That will be £500."
Dr. Young (after having lost £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." (giving him a £10 note)"
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"!