#PI When we were young, we learned a text called "The Wolf is Coming." When the shepherd boy said, "The wolf is coming, the wolf is coming," the adults believed him and went out to hunt the wolf, but there was no wolf. Later, the shepherd boy said again, "The wolf is coming, the wolf is coming," and the adults chose to believe him and went out to look for the wolf, but again, the wolf did not come, which made the adults very angry and they no longer believed the shepherd boy. When the wolf really came, the shepherd boy said, "The wolf is coming, the wolf is coming," but this time the adults di