介绍:
A bat who was caught by a weasel pleaded for his life. The weasel refused, saying that he was by nature the enemy of all birds. The bat assured him that he was not a bird, but a mouse, and was set free. Shortly afterwards the bat was caught by another weasel, who had a special hostility to mice. The bat assured him that he was not a mouse, but a bird, and escaped death again.
