Once a wolf was drinking water at stream.
Lower down the stream, a lamb was also drinking.
The wolf wanted to eat him.
He came down to the lamb and said, “Why are you making the water muddy?
The lamb replied, “The water is flowing from you to me. I cannot make it muddy.”
The wolf was ashamed to hear the answer.
The wolf then said, “Why did you abuse me last year?”
The lamb said, “You are mistaken, sir. I was not born last year.”
The wolf said, If it was not you, then it must be your mother.”
Saying this, he killed the lamb and ate it up.