A man walks into work one morning with his arm hurting like hell. He tells one of his co-workers about it and the guy says to him, “Why don't you head down to the drugstore on the corner? There's a new machine there that can help you out, and all you need is 5 dollars and a urine sample.”
The man is skeptical, but decides to give it a try. So, on his lunch break, he heads over to the drugstore, picks up a sample cup, pees into it, then goes over to the machine, puts in his 5 dollars and waits. Some seconds later, the machine prints out a report which says, “You have tennis elbow. Go home, put some ice on it, and you'll feel better in the morning.”
The man is amazed. On his way out, he decides to see if the machine can be fooled, so he takes another urine cup and goes home. When he gets there, he fills it with some tap water, feaces from his dog, some urine from his wife, urine from his daughter, and finally, some of his own sperm.
The next day, he heads back to the machine, pays another 5 dollars, slots in the sample cup, and waits with a grin on his face. Some seconds later, the machine prints out the following report:
1. Your tap water shows trace elements of metal. Get a drain cleaner.
2. Your dog has some rather nasty worms. Get it to the vet. Fast.
3. Your daughter is doing cocaine. Get her into rehab.
4. Your wife is pregnant with twins and they're not yours. Get a lawyer.
5. If you don't stop playing with yourself, that elbow of yours is never going to get better.