Two hunters got lost in the woods. The first hunter said, "Don't worry. All we have to do is shoot into the air three times, stay where we are, and someone will find us."
So they shot in the air three times, but no one came. After a while, they tried it again; still no response.
Finally the second hunter said, "I suppose we can try again, but it better work this time. We're down to our last three arrows."