From a movie, was already covered in post 23 (Enemy at the Gates.)
From a TV show: an episode of Hill Street Blues. Dennis Franz, as Det. Norman Buntz, has rolled up on a scene. Two uniforms (Officers Bobby Hill and Andy Renko) have cornered a junkie who had absconded with a cooler from a crashed ambulance, a cooler which contains a human heart being transported for transplant. The junkie is demanding money for the heart's safe return.
The dialogue goes, as I remember, like this:
PTL Hill: "There's a man in desperate need of that organ. If he doesn't get it, he's gonna die!"
Det. Buntz, (as he approaches and draws his .38 snub): "Is this our man? Is this him?"
He then tells "Dr. Hill and Dr. Renko" to "get your masks and gowns on; looks like we're gonna have to operate!"
The junkie threatens to open the cooler and slash the heart with a knife he's holding, saying "I'm the one who's gonna operate. Then you don't get no heart!"
Det. Buntz replies: "Listen, pal, if that heart don't make it, I'm gonna blow your freakin' head off and we're gonna use yours! You got that!?" (turning to Hill and Renko, he continues "get that medical kit out of my car; I got a scalpel in there.!"
He begins to count backwards from two, adding to Hill and Renko to "Get ready. When he goes down, we're not gonna have much time!"
The junkie then drops the cooler and runs.
No shots fired, but cool dialogue to me.