Two men are playing tennis, one man falls and hits his elbow and decides to go to the doctors, the other man says "Don't waste any money on the doctors, just go inside the store at the corner down the street, put $10 in the machine in the corner, piss in the cup, let it do its thing and a slip of paper will come out that tells you what you have". So he goes to the store puts ten dollars in the machine, pisses in the cup and out comes a piece of paper it says "You have tennis elbow take this ointment cream and apply it on your elbow 3-4 times a daily". So goes home wondering how it knew what was wrong, and wanted to see if this machine is a real miracle worker, so he goes home and gets his sisters piss, brothers piss, dogs piss, and jacks-off in the cup goes back to the store, puts ten dollars in the machine and places the cup in the machine. The paper comes out and says "Your sister has gonorrhea, your brother is gay, your dog has worms, and if you keep jacking-off like that you'll never lose that tennis elbow.

Haha, the machine is so powerful.
It can classify all their pisses, and tells their problem.
  It even knows that his brother is gay