Some folks might want to get off the high horse long enough to consider that someday it might be them, remote though the possibility may seem, that screws up.
At that point, their take on what should constitute a crime may have a sudden shift...
So what is your point? If I negligently discharge a weapon at the mall I will accept the consequences.
I am not advocating jail time for the good Sergeant. A fine and disciplinary action seems reasonable to me.