The line
"If it was me dying on the sidewalk, You'd walk right over me" was actually improvised and
"No one knows how to be civil anymore" I don't know who this gentleman is, but the way he carries himself,
Kind of out of place in that the on-screen tantrum is about the breakdown of civility but it's about how it's everyone else's fault but the addict's. As if the two weren't related.