THE CAGE-BIRD AND THE BAT
A Singing-bird was confined in a cage which hung outside a window, and
had a way of singing at night when all other birds were asleep. One
night a Bat came and clung to the bars of the cage, and asked the Bird
why she was silent by day and sang only at night. "I have a very good
reason for doing so," said the Bird: "it was once when I was singing
in the daytime that a fowler was attracted by my voice, and set his
nets for me and caught me. Since then I have never sung except by
night." But the Bat replied, "It is no use your doing that now when
you are a prisoner: if only you had done so before you were caught,
you might still have been free."
Precautions are useless after the event.