Don't make old people mad

A pensioner became very bored in retirement and decided to open a medical clinic.

He put a sign up outside that said:

"Pensioner's Clinic.  Get your treatment for £500.  If not cured get back £1,000."  

Doctor "Young", who was positive that this old pensioner didn't know beans about medicine, thought this would be a great opportunity to get £1,000 so he went to the pensioner's clinic.

Dr Young: "Pensioner, I have lost all taste in my mouth.  Can you please help me?"

Pensioner: "Nurse, please bring medicine from box 22 and put 3 drops in Dr Young's mouth."

Dr. Young: Aaagh!! -- "This is Gasoline!"

Pensioner: "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."

Pensioner: "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!"

Pensioner: "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!!!!"
Pensioner: "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!" Pensioner:  "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 Pensioner".

Remember: Don't make old people mad.  We don't like being old in the first place, so it doesn't take much to tick us off.