That’s more or less unironically how they think. They run around telling each other everyone wants to kill them and is going to gun them down any second.
One of the leading causes of cop death is getting in to traffic accidents without seatbelts on. They won’t wear their seatbelts because they think they’ll need to react instantly when they’re ambushed by the bad guys, which is everyone who isn’t a cop. They think they’ll get tangled up in their seatbelts and not be able to escape the vehicle and shoot the bad guys. Instead they get thrown from their vehicles and die. I don’t think the “died in an ambush because they were tangled in their seatbelt” thing has ever happened.
They’re basically going around hotboxing their own farts as they fantasize about how dangerous their jobs are and how evil everyone around them is, while all their cop buddies reinforce those beliefs and between stealing shit and ODing on fent they go to “Warrior Cop” indoctrination/training courses where they’re told they need to be ready to kill all the time, every day, instantly.
Their job has been getting less dangerous for decades while they’ve become more and more paranoid as a culture, detached from reality, militarized, and more concretely viewing themselves as an occupying force keeping the barely human animalistic public in line.
You know when you think about it a bunch of assholes who are constantly scaring each other in to thinking the world is going to kill them at any second while they juice up on steroids and raid the evidence locker for whatever they can get their little trotters on and give themselves layers and layers of PTSD from brutalizing the public, of course they’re going to be using fent to take the edge off, those guys must be within an inch of a stroke every moment they’re awake.