I am just wondering how anyone can survive if a hole is drilled into his head? Seems like some psycho attempted to make his victim turn into a zombie by drilling a hole into his head before pouring acid into the brain. How is it possible? Wouldn't that person have died from the drilling in the first place? Even if he survived, would acidified brain turn him into a zombie? Do tell me if that's feasible (not that I wana try it on anyone)...