This weekend, my future SIL was admiring a recent purchase. A NIB Ruger SR9c for 200 bucks....
Anyway, he started off well, removing the mag from a handgun that I knew was unloaded and handed it to me butt first. Instinctively, I rechecked the chamber and even stuck my pinky in there to ensure it was unloaded. I played with it for a short while and gave it back, butt first, slide locked back for inspection.
After that, he repeatedly, haphazardly, swept the muzzle in my direction while he was inspecting the weapon. I need to have another talk with him. Regardless of the condition of any firearm, avoiding sweeping the muzzle is a dangerous direction is good practice. I NEVER sweep the muzzle at anyone, EVER!