My mother's town offered, all those living alone, a lock box made of metal that hangs over the top of the front door.
It's U shaped, you close the door & it's stuck between the top of the door & the top of the door frame.
the first responders (fire marshall for one, i believe) have a master key to all the lock boxes in town so no more breaking down the door.
Blowing out someone else's candle doesn't make yours brighter.