(Did you know “A joke a day keeps the doctor away”? Unless he happens to be your fun-Doctor, in which case enhanced empathy with him is the outcome!)
There was once a man who had pain in his elbow. When he went to the doctor, he was greeted by a large computer that said “urine sample, please!”
The man who had the urine sample with him handed it to the computer, which immediately responded “tennis elbow, collect your prescription please & check back in a week!”
Next time the man decided to joke with the computer, so he had with him his wife’s, daughter’s and son’s urine samples and he also mixed it up with a little semen of his own. After he mixed it, he went back to the computer. The machine received the samples and the man laughed.
After a while, the computer says “your son is on drugs, your daughter is pregnant, your wife is cheating and if you do not stop jerking off soon you will never get rid of the tennis elbow!”