Two medical students were walking along the street when they saw an >old man walking with his legs spread apart. > One of the students said to his friend: "I'm sure he has Petry >Syndrome. Those people walk just like that." > The other student says: "No, I don't think so. The old man surely has > Zovitzki Syndrome. He walks just as we learned in class." > Since they couldn't agree they decided to ask the old man. They approached > the old man and one of the students said to him: "We're medical students > and couldn't ignore the way you walk, but we couldn't agree on the syndrome > you might have. Could you tell us what it is?" > The old man said: "I'll tell you, but first you'll tell me what you think." > Then one of the students said: "I think it's Petry Syndrome." > And the old man said: "You thought, but you're wrong." > Then the other student said: "I think you have Zovitzki Syndrome." > And the old man said: "You thought, but you're wrong." > So they asked him: "Well, what do you have?" > And the old man said: "I thought I needed to fart, but I was wrong."