I knew a real life one. He was a washout from Parris Island. Called himself "Wolf". Wore a black leather trenchcoat (because he could conceal a Mossberg Cruiser) tucked BDU pants into HiTec boots, and some kind of Indiana Jones hat. Oh! And fingerless gloves. I could go on but you know the type. He had a job as a security guard (of course). He comes by my house one day and shows me this POS beater ~4" S&W .38 revolver they gave him along with five wadcutters. Had to be vintage 1920's and this was 1998 or so. Nothing to look at but it worked like a clock.
He comes by because he wanted to borrow my G21. He didn't have a handgun and they wouldn't let him carry his Chinese AK with a 75rd. drum and Shotgun News $200 37mm under barrel flare launcher (he asked). I think it was a job guarding a mall parking lot? Some parking lot.
I don't know, I saw a video some time back where a guy with a knife was literally chasing and chopping up several armed cops. I think they eventually got him but it took a while... The video would be 3 Stooges level comedic if it didn't wind up with I think six severely injured and/or dead cops, cops that really tried to not shoot the guy so gotta give 'em marks up front for that. Mexico or SA somewhere IIRC.
I've heard more than once and even seen proof a few times, that if the enemy is within 21' and you don't have the weapon already drawn, that the distance can be closed faster than most can draw. One article stressed "belly shooting" where you just clear the holster, keeping the pistol at your hip/belly and close to your body, and point shoot the entire cylinder or mag into the enemies belly. Idea is that it's faster and they can't disarm you or wrestle the weapon.
In all cases where the enemy is close, it's ideal to have your offhand out like a "stop sign" (or "are you ready" if you're too hooah for that shit!) to keep anyone back while you're attempting the draw. At least that's what I learned and practiced.