Derek played football with his mates every Sunday afternoon in the local park.
His right knee had been giving him trouble for some time, but recently the pain
had been even worse than usual so he decided to see the doctor.
When he arrived at the surgery, the nurse told him he could see the doctor
in 15 minutes but first he would have to give a urine sample. Derek said that
it seemed crazy to give a urine sample to help solve his knee problem. However
the nurse insisted, so eventually Derek complied. A quarter of an hour later he
was ushered in to see the doctor.
"So, that knee is giving you trouble again, eh?" said the doctor
almost immediately. "The nurse must have told you then," said Derek,
wondering how the doctor knew.
"No. It was in your urine analysis," the doctor replied. "We've
got a new urology machine which can diagnose every physical condition with complete
Derek didn't believe a word of it, but nevertheless he agreed to provide another
urine sample on a check-up visit. A few days later, Derek was sitting at the
kitchen table with his wife and teenage daughter. He was telling them about
this ridiculous machine, when he decided to have a little fun with the doctor.
He peed into the sample bottle, as did his wife and daughter.
Then he had the idea of giving even more 'spice' to the proceedings. He added
a few drops of motor oil to the bottle and finally had a wank and put a few drops
of semen in with it too. He returned to the doctor's surgery, shook the bottle
and handed it to the nurse.
This time the urine analysis took half an hour. Finally Derek was ushered
in to see the doctor. The doctor looked at him and said,
"I'm afraid I've got some bad news for you. Your daughter's pregnant,
your wife's got V .D., your car's about to break down and if you don't stop wanking,
that knee's going to get even worse."