If you’re going to do some gunsmithing, even something as rudimentary as attaching a light, unload the weapon first - mag and chamber.
Unload the weapon b4 working/cleaning it? Double check. Who knew?
I wonder if this dope checks his car oil with the ignition on and the car in gear too.
this reminds me of the story of the current or former derringer owner’s son. they have a handgun that shoots 410’s i believe. while working on the gun he accidentally discharge a round into his abdomen. The gunpower cauterized the wound after the pellets destroyed his insides.
https://www.youtube.com/watch?v=5SoWsLdxUTs