Vermin

* See also KittyCatsInRapture
"Rats, Roaches, Atlas ..." - Something Andrew Ryan Said ... 
Add Flies.
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Rapture is one big building. Many tight narrow spaces (and nooks and crannies).
What would they Eat ( and usually Spoil the rest ).
Would arrive in Rapture as they always do - in packing cases and other such sneak paths.
Fumigating Process - dangerous last resort.
Corpse nibbling ...
Disease Carrying ...
Parasites.
Fleas ? ( "Pestilence" might be a good word Ryan would make use of )
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