I used to have a .32 acp Davis Derringer that I carried when I couldn't carry a gun. As long as there wasn't a metal detector, I carried it. I just dropped it in my pocket and it disappeared. My keys and change in my other pocket made more of lump than it did. Then the Ruger LCP came out. I got one of those. I didn't feel quite so undergunned with it.
Of course, now that I am retired and seldom go anywhere I am not supposed to carry, I carry the LCP in a belt holster that looks like a large cell phone case and usually have my S&W Airweight .38 snub in my pocket.
(Luke 11:21 KJV) When a strong man armed keepeth his palace, his goods are in peace:
(Luke 22:36 KJV) Then said he unto them, But now, he that hath a purse, let him take it, and likewise his scrip: and he that hath no sword, let him sell his garment, and buy one.