"I think I have a problem, doc," says the patient, "one of my balls has
turned blue".

The doctor examines the man briefly and concludes the patient dies if they
don't have his testicle removed. 

"Are you crazy?!" bursts the patient, "how could I let you do such a thing
to me!"

"You want to die?", asks the doctor retorically, and the patient has to
agree to have his testicle removed.

But, two weeks after the operation, he comes back.

"Doc, I don't know how to say this, but the other ball has turned blue,
too." Again, the doctor tells him if he wants to live, his other testicle
must be cut off, too, and, again, the man is very reluctant to the idea, 
but finally has to agree with the operation. 

Two weeks after he is testicleless, he returns to the doctor: "I think 
something is very wrong with me.

My penis is now completely blue." After briefly examining the patient, the
doc gives him the bad news: If he wants to live, his penis has to go. Of 
course, he does not want to hear about it.

"You want to die?", asks the doctor.

"But... how do I pee?"

"We'll install an plastic pipe, and there will be no problem."

So, he has his penis removed, and, a while after the operation, the 
unfortunate man enters, again, the doctor's office. He is very angry:
"Doctor, the plastic pipe turned blue."

"What?"

"Can you tell me what a hell is happening?"

So, the doctor examines the patient more carefully and says: "Hm, I don't
know, could it be the jeans...???