Guy : Doctor, my Girlfriend is pregnant but we always use protection and the rubber never broke. How is it possible? Doctor : Let me tell you a story: "There was once a Hunter who always carried a gun wherever he went. One day he took out his Umbrella instead of his Gun and went out. A Lion suddenly jumped in front of him, in order to stare the lion, hunter took out his umbrella and shot the lion and he died Guy : what nonsense! It's not possible, someone else must have shot the lion Doctor : Good ! You understood the story, next patient please.