Who the hell says there's "rules"?! If a zombie can hold a gun and fire it, I say let 'em have it, it'll make the movie more interesting. I can just picture a zombie movie some of your ways:
Zombie picks up gun off floor and slowly points it at human
Human: No you can't use that! It's just not FAIR! It's against the "rules".
Zombie puts down gun and allows human to pick it up and shoot a hole right the fuck through the back of it's head, while it moans and grunts like it's "supposed" to do
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