Two inexperienced hunters were hunting in the woods. Before long, they got lost.
“Don’t worry,” said the first hunter. “I heard that if you’re lost, you fire three shots in the air so somebody will hear you.”
They fired three shots in the air and waited. A half-hour later they tried it again, and still no one heard them. Finally, they decided to try it a third time.
“This better work,” said the second hunter. “These are our last arrows.”