The brother of a friend I grew up with carried a little .25 ACP with him when he went out on the town. I laughed at him and told him “That’s not going to kill the guy you shoot you know.” I still remember his reply to that - “Nope, but it gives you a hell of an advantage in the fist fight that follows.”
He has more faith in it than I would.
But a gun is a gun, and I wouldn’t argue with someone pointing even a .25 at me.
Nazi officers used to carry Browning Babies. Apparently, they were useful if they needed to commit suicide.