but after a while they'd be full of stagnant seamen bursting to get out...

( The Great Architect We have a REALLY big Computer, Thu 7 Dec 2006, 11:00, archived)

I think they have monthly openings on the surface
to replace the crew before they weld it shut again
( mediocre FISTING FULL THROTTLE, Thu 7 Dec 2006, 11:04, archived)