A man walking along a road in the countryside comes across a shepherd and a huge flock of sheep. He tells to the shepherd: "I will bet you 100 € against one of your sheep that I can tell you the exact number in this flock." The shepherd thinks it over; it’s a big flock so he takes the bet. "973," says the man. The shepherd is astonished, because that is exactly right. Says "OK, I’m a man of my word, take an animal." Man picks one up and begins to walk away. "Wait," cries the shepherd, "Let me have a chance to get even. Double or nothing that I can guess your exact occupation." Man says sure. "You are an economist for a government think tank" says the shepherd. "You are exactly right!" responds the man, "but tell me, how did you deduce that?" "Well," says the shepherd, "put down the dog and I will tell you."