Though in fairness most of the zombie documentaries I've seen haven't focused on brain consumption. We haven't had a major zombie outbreak in my area yet so its hard to say as a direct observer. I think we had a minor one but the cops said no, it wasn't zombie, and the judge gave me a lot of crap about "Murder", but I told the jury the guy had said he thought I was smart and wished he had my brain and they agreed it was clearly a threat and self-defense... stinking zombie.