Rule Z – Blame 2020 On The Roomba December 1, 2020 by rainman You know the Zombies come next, right? Rule Z – There is never, ever just one zombie. Related posts: Rule Z – Grandpa’s Are The Best Home Schoolers Rule Z – Used To Be Zombies Were The Only Things To Worry About On Resupply Trips Rule Z – Post Apocalyptic Airship Control Deck?