I will add: Any gun when you need a gun is better than no gun.
Would I could, I would carry a full size 1911 and an M1 Garand!
But my Sig P238 and/or my Kel-Tec P32 are ALWAYS with me, before that, the Colt 1903 was the one I carried with the KT as BUG.
Carried a lot of mouse guns over the years as they were all I could conceal at the time.
The ones I carry I can SHOOT, and shoot well, as I believe bullet placement is the key. A hit or two with a mouse gun beats hell out of a whole cylinder full of 44 Magnum misses any day.
Oh yeah, I have actually had to shoot another person in SD and I am here to tell it!