As a boy I was a hermit crab, but I soon came out of my shell. Now I am a pincer crab, and soon I will be at my full power as a deadly nuclear lobster
I’ve always wanted to be a giant space crab.
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.