It's been a while since I posted one of these things. Let's see if I remember how to do it. I chose this strip to annotate because I redrew it 4 or 5 times. The middle panel gave me fits; it kept turning out too tidy, too stacked instead of heaped, too neat. The comics have a distinguished history of eyesore back yards, and front yards too, from Hogan's Alley to George Booth (see below), so I felt I had a tradition to uphold.
Each time I redrew it the dialog and the gag changed, Originally Alice is disgusted by the squalor and says Get me outta here! But there's nothing funny about that and it makes no sense; Alice is a slob with no natural objections to Dill's back yard. She'd more likely go home and try to do the same thing to her back yard. And, as someone who has a messy back yard, I've got no business acting all superior back-yard-wise. So out of great struggle and profound deliberation comes this Cul de Sac for January 10, 2012.