A man asks his doctor how his wife can be pregnant since he always used condoms. The doctor asks him to listen to a story. He said one day his Uncle went hunting as he usually did for bear. He carried his rifle and an umbrella since it often rained where he lived. He came across a bear and instead of grabbing his rifle, he grabbed his umbrella an shot the bear dead. The patient said that cannot be. Someone else must have shot the bear and the doctor replied, "that is true., any other questions?"