A Man, walking alone through the fields, heard a voice call out, “Hello!”. He stopped and looked around him, but seeing no one, continued on his way. Again the same voice called out, and again the Man stopped, and again he could see no one. But the voice had been friendly, and the Man was curious as to who could be calling out to him so politely. And so he searched for the source of the voice some more and when he could still not see any one, he stood there for a long while, perplexed and lost in thought, and lost the time in which he might have walked several miles. Finally, a Raven flew out of the trees, and hovered above him, calling ‘Caw’ at repeated intervals. The Man realised that he had mistaken the Raven’s call for a greeting. “Curse you, most mischievous bird,” he cried, “to have thus delayed me when I was in such a hurry!”

Men are frequently imposed upon by mere words.