The Indians asked their Chief in autumn if the winter was going to be cold or not. Not really knowing an answer, the chief replies that the winter was going to be cold and that the members of the village were to collect wood to be prepared.
Being a good leader, he then went to the phone booth and called the National Weather Service and asked, "Is this winter to be cold?" The man on the phone responded, "This winter was going to be quite cold indeed."
So the Chief went back to speed up his people to collect even more wood to be prepared.
A week later he called the National Weather Service again, "Is it going to be a very cold winter?" "Yes," the man replied, "it's going to be a very cold winter."
So the Chief goes back to his people and orders them to go and find every scrap of wood they can find.
Two weeks later he calls the National Weather Service again, "Are you absolutely sure, that the winter is going to be very cold?"
"Absolutely" the man replies, "the Indians are collecting wood like crazy!"