Everybody's Dead, Dave: The Crew decide by the end of the film, everyone in town has been murdered by the leads.
The "Fun" in "Funeral": During one of the host segments, Joel and the bots get to experience death... or at least what it feels like to be in a casket. After a moment contemplating what death would be like, they start describing how they want their funerals to be like — Crow's and Tom's are really fun. Servo finally decides he wants a circus, and Crow "modestly" demands to be mummified and buried next to Stalin.
Mood Whiplash: Then Servo asks Joel why doesn't he just not die, as if death is a decision people make.
Kill 'em All: Thanks to the fact that most of the extras playing townspeople just up and disappear for the last third of the movie, Crow and Tom run with the idea that the entire town is dead.