Aesop

“ But the Beetle noticed this and made a ball of dirt the size of an Eagle’s egg, and flew up and deposited it in Jupiter’s lap. When Jupiter saw the dirt, he stood up to shake it out of his robe, and, forgetting about the eggs, he shook them out too, and they were broken just as before. Ever since then, they say, Eagles never lay their eggs at the season when Beetles are about.
The weak will sometimes find ways to avenge an insult, even upon the strong. ”