Cul de Sac by Richard Thompson for March 17, 2012
Petey: I'm done with my shoebox diorama! Alice: So that's a post-apocalyptic landscape? But it's empty! Petey: Uh-huh. All the survivors are hiding in underground caves, only to emerge much later. Alice: Like who? Petey: Like zombies. And cockroaches. Dad: And mimes! Alice: EW.