* One of the bugs that broke into the store was about to kill Mrs. Carmody, but ended up sparing her. It recognized her as a fellow monster.
** It's more likely that she remained calm and so it moved on; the bugs appeared to sting mainly in defense, as we don't see them actually eating anyone (half of a corpse is lying right outside and they ignore it). Ironically, the bug is just an animal while Carmody is truly a monster...
* While the end seems to suggest "bitter coincidence", the events do line up. The religious nut proposes that the boy be made a human sacrifice, something which is resisted by the sane members of the group. On the road, after the boy and the other members of the group are dead, everything is better. In effect, after the boy - who was proposed to be a sacrifice - dies, the problem goes away.
** There is always the dim hope that one of the Really Big Things stepped on the store, even if any of the Small or Medium Things didn't somehow get in (that plate glass and those loading bay doors: they can't hold out against accidental perforation forever). Not that that helps the few nice people left behind, there, though.
* We never see what happens to the remaining supermarket survivors after the main character's group drive away. Thus, we never see if the others from Mrs. Carmody's "cult" snap out of their fanaticism once she's dead, or if they rationalize her death as "martyrdom" and continue to embrace her crazy beliefs. Which is a disturbing possibility in the movie, but a ''horrific'' one in the story, because [[spoiler: there's ''another small child'' - a little girl - in the novella's grocery store. Did '''she''' get sacrificed in Billy's place?]]