Remember , when being sarcastic and short with your doctor, he is the one with the needle and proctoscope. No need to be nasty about it. When you shoot yourself in the foot, he is the one who patches you up. It falls in the same class as "do you smoke"," do you eat red meat", "how well do you sleep". Hard to accuse the guy who says turn your head and cough of not being a little invasive.