英语寓言故事-The Ass and the Wolf

AN ASS feeding in a meadow saw a Wolf approaching to seize him,
and immediately pretended to be lame.
The Wolf, coming up,
inquired the cause of his lameness.
The Ass replied that passing
through a hedge he had trod with his foot upon a sharp thorn.
He
requested that the Wolf pull it out, lest when he ate him it
should injure his throat.
The Wolf consented and lifted up the
foot, and was giving his whole mind to the discovery of the
thorn, when the Ass, with his heels, kicked his teeth into his
mouth and galloped away.
The Wolf, being thus fearfully mauled,
said, "I am rightly served, for why did I attempt the art of
healing, when my father only taught me the trade of a butcher?'