When a character subverts No One Could Survive That by making sure the dead person stays dead. Can be done with bullets (sometimes lots of bullets or special types), fire, explosives, molecular disintegration, or a wooden stake, depending on what's available. Probably the most effective way of dealing with a Zombie Apocalypse, assuming you can disable the victim in the first place and that you can find the body afterwards. Examples of Make Sure He's Dead include: