So this guy has a sore elbow. So this guy has a sore elbow and goes down to the clinic to get it checked out. The doctor says ""No problem, we just got a new machine and if you give it a blood sample it tells you exactly what's wrong with you and how to treat it."" The guy is skeptical but gives it a shot. The machine tells him ""you have tennis elbow, ice and rest your elbow for 2 weeks."" The guy is impressed but still not convinced. He decides he wants to trick this new machine. He goes home and gets a hair from his daughters comb, urine from his wife, and a fecal sample from his dog. He then jerks off into the cup for good measure. He goes back to the doctors office with this new sample and puts it in the machine. the machine tells him ""Your wife is cheating on you, hire a divorce lawyer. Your daughter is experimenting with crystal meth get her to a rehab clinic. Your dog has leukemia, put it down."" ""and if you don't stop jerking off so much you will never get rid of your tennis elbow.""