Will depend on where you are. Bullets can go through walls.
Point a firearm at yourself or anyone else.
Focused when handling firearms.
To avoid unintentional discharges
Never lean firearms against vehicles, fences walls, any place where they could slide or fall.
Particular care needed
When placing or removing firearms from, vehicle, boats and storage.
Firearms can go off unintentionally
Closing the action, releasing the catch, un-cocking or opening / loading the firearm