There are cases of weapons discharging due to malfunctioning weapons, holsters and ammunition instead of negligence. This is why the first rule is, never point your weapon at something you do not wish to destroy. Typically they mostly happen while loading or unloading a firearm. These are typically called "Accidental Discharges" instead of "Negligent Discharges."

https://www.guncrafttraining.com/articles/negligent-discharg...