I'll wait for you guys to discover revolvers.......
This has nothing to do with having one in the chamber and everything to do with crap equipment (no holster, I bet) and putting your finger on a trigger when you don't intend to kill something.
For reference with people wondering about safeties, most cops carry glocks. Glocks only have one safety, as part of a dual movement trigger and is striker fired. 1911 as noted have 2, an external safety and a grip safety.