I know. I always think of that scene in Die Hard 2 where McClane hoses that airport security chief with a blank-loaded SMG to make a point. IRL, the guy probably would have survived, but he'd have been hurt.Kind of reminds me of blanks. At a distance, they do nothing, even wood-tip blanks with a muzzle break shredder. Close up, especially to the head, they can easily kill.
Of course, given the presence of 32-second grenades and undetectable porcelain pistols (that looked a lot like plain ordinary and completely detectable Glocks), DH2 is not a model of cinematic realism.