" Oysters open completely when the moon is full; and when the crab sees one
it throws a piece of stone or seaweed into it and the oyster cannot close
again so that it serves the crab for meat. Such is the fate of him who opens
his mouth too much and thereby puts himself at the mercy of the listener. Leonardo da Vinci, 1452-1519 "
― Robert Greene , The 48 Laws of Power