Hapless mariners are they,
Who beguil’d (as seamen say),
Deeming him some rock or island,
Footing sure, safe spot, and dry land,
Anchor in his scaly rind;
Soon the difference they find;
Sudden plumb, he sinks beneath them;
Does to ruthless seas bequeath them.
 
“The Triumph of the Whale”
Charles Lamb