Late last night, in accordance with New Media for the Modern Showrunner Handbook guidelines, The Walking Dead executive producer Glen Mazzara took to Twitter to interact with fans of the series he inherited halfway through its tumultuous second season. While he did respond to queries — like, "Michonne is the most unrealistic character from the comics, why choose to bring her in?" and, "Which of the survivors from S2 would u want to party with?" (Answers: they have a good storyline for her; Maggie) — he notably dodged one inquisition, which, in fairness, perhaps could have been posed in a more clinical fashion to better communicate its unquestionable import: Do zombies poop?