Blood stains on the wall? It arguably makes more sense than the "wood chip." Actually, I didn't want to say this and risk sounding like an attention ho, but my band does a more balladish version of the song (if you've heard the Nick Cave version that was a B-side on "Bad Cover Version," that's essentially it), and maybe I'll sneak your words in at the next show.
Thanks for the book recommendation, too! Between all the Pulp and Suede I've been listening to, it should be a great read.