.22s. .32s and .380s are guns you carry when you can't carry a gun. Personally, I carry a Kel-Tec P32 (.32 ACP) when I have to dress light or formal. My Glock or my SIG P229 is just too big for many occasions. ANY gun is better than NO gun. I suppose. I'd think that one could find a relatively flat .38, or at least, as you note, a .32.