* FridgeBrilliance: What if Feely ''is'' a pedophile, and the Filth (as the "cleaners" of society) are his mind's way of coping, by providing the illusion of an outside group willing to "clean" him up?
* WhatDoYouMeanItsNotSymbolic: The cosmic garbage trucks cross dimensions by engaging Ninth Gear ("faster than the speed of wall.") A character in ''ComicBook/TheInvisibles'' mentions that nine is the favorite number of the Hindu god Ganesh, Remover Of Obstacles. Other references to religion and cosmology are sprinkled throughout the story.