A man was hiking in the hills for the first time and, for safety, he brings along two guides. At the beginning of the hike, the first guide said, "Keep all personal items close, stay behind me, and above all else, keep your balance around the steep dropoffs!" The second guide had never been on such a long hike and, despite the warnings, tumbled off one of the high cliffs and rolled into a valley. His spine was broken in the fall. The man and the first guide watched the guide fall, shrugged, and then moved on.
Why did they offer no help or concern?
CLUE ONE: Not all guides are alike.
CLUE TWO: The guide could not speak, nor could he hear.
CLUE THREE: You could read the guide like a ....
ANSWER: The guide was a book.
