The Fly upon The Cobweb (A fable)

A housefly landed upon a cobweb once and mocked the spider that had built it.

"Where are you now, old eight legs?", he buzzed, "Now all your silk is but a ghostly thread and your trap has turned to dust".

But then, just as the fly was feeling proud of his jeering he thought he saw the shadow of a spiders long, dancing, dangling legs loom over the old web.

It was not a spider, it was merely the shadow of a twig whose narrow leaves had been set dancing by a sudden breeze but the fly did not know that and so it quickly buzzed away, fearful of being caught.

Moral: Those who are too cowardly to mock the living, they mock the dead.