One day, in line at the company cafeteria, Joe says to
Mike behind him:

"My elbow hurts like hell. I guess I'd better see a doctor."
"Listen, you don't have to spend that kind of money," Mike replies.

"There'* a diagnostic computer down at Wal-Mart. Just give it a urine sample and the computer will tell you what'* wrong and what to do about it. It takes ten seconds and costs ten dollars . . . A lot cheaper than a doctor."

So, Joe deposits a urine sample in a small jar and takes it to
Wal-Mart.

He deposits ten dollars, and the computer lights up and asks for the urine sample. He pours the sample into the slot and waits.
Ten seconds later, the computer ejects a printout:
"You have tennis elbow. Soak your arm in warm water and avoid
heavy activity. It will improve in two weeks.
Thank you for shopping @ Wal-Mart."

That evening, while thinking how amazing this new technology was,
Joe began wondering if the computer could be fooled. He mixed some tap water, a stool sample from his dog, urine samples from his wife and daughter, and a sperm sample for good measure.

Joe hurries back to Wal-Mart, eager to check the results. He deposits ten dollars, pours in his concoction, and awaits the results.

The computer prints the following:

1. Your tap water is too hard. Get a water softener (Aisle 9).
2. Your dog has ringworm. Bathe him with anti-fungal
shampoo (Aisle 7).
3. Your daughter has a cocaine habit. Get her into rehab.
4. Your wife is pregnant. Twins. They aren't yours. Get a lawyer.
5. If you don't stop playing with yourself, your elbow will never
get better!
Thank you for shopping @ Wal-Mart!"

An oldie but a goodie (and maybe a repost, but this is such a happenin' place now, it'* gonna happen)

too funny!