Then when one shanghaied sailor vows revenge on them for bringing them on this "ghost ship" the captain blows his stack and punches him out, further warning the crew that if he hears anyone say "ghost" again, "I'll take his head and I'll twist it around so that when he's walking north he'll be lookin' south! Ya get me?!"
Then when a shanghaied sailor swore vengeance on them for boarding this "ghost ship," the captain lost his nerve and punched him. This reinforced the crew's warning that if anyone mentions "ghost" again, "I'll chop off their head and turn it around so they're walking north but looking south! Do you understand?"