Two guys have 9 a.m. appointments at a vasectomy clinic. A young nurse preps them for surgery. She tells the first guy to take off his clothes and sit on an exam table. Then, she takes his manhood in her hands and masturbates him. She tells him that it is standard procedure to make sure there are no blockages.Once done, the nurse tells him to sit down and repeats her instructions to the second guy. When he is on the exam table, the nurse gives him a blow job. Upon seeing this, the first guy says, "That's not fair. Why does he get a blow job?"The nurse says, "Sorry, that's the difference between Blue Cross and an HMO."