I was once diagnosed with it. I went to the doctor and he asked for a urine sample. I gave it to him and he just looked at it and says, "You've got tennis elbow."
WTF? So I went to another doctor and she asks for a urine sample and I give it to her. She looks at it and says, 'Tennis elbow."
Well this is bullshit, i think. I go to a third doctor and he asks for a urine sample. I tell him I can't go and I'll bring it in tomorrow.
So I go home and just to fuck with these quacks I have my daughter pee in it. Then I drain a little oil from the Jeep's crankcase into the cup. Then, just for good measure, I fap into it. I mix it all up real good and take it to the doctor.
He takes one look at it and says, "I've got some bad news. Your daughter's pregnant, your Jeep needs an oil change and if you don't stop jerking off you'll never get rid of that tennis elbow.