On September 12, 2011, Professor Miller posted on his office door an image of Nathan Fillion in Joss Whedon's sci-fi series Firefly and a line from an episode: "You don't know me, son, so let me explain this to you once: If I ever kill you, you'll be awake. You'll be facing me. And you'll be armed." On September 16, UWS Chief of Police Lisa A. Walter notified Miller that she had removed the poster because it "refer[s] to killing." After Miller replied, "respect my first amendment rights," Walter wrote that "the poster can be interpreted as a threat." Walter also threatened Miller with criminal charges: "If you choose to repost the article or something similar to it, it will be removed and you could face charges of disorderly conduct."
In response to Walter's censorship, Miller placed a new poster on his office door on the 16th. The poster read "Warning: Fascism" and mocked, "Fascism can cause blunt head trauma and/or violent death. Keep fascism away from children and pets."
Astoundingly, Walter escalated the absurdity. On September 20, she wrote that this poster, too, had been censored because it "depicts violence and mentions violence and death" and was expected to "be constituted as a threat."