And a lot of practical experience. A person needs to get the mindset of carrying what they might really need, not what is the most handy. A 2 shot NAA derringer is better than nothing but a bad guy with a Glock will make short work of that idea.
we were taking the grandkids to a jump zone play place in a city near where we live and a Mustang pulled up next to us, the youth that got out of it had on sweat pants, he pulled his shirt up and checked on the positioning of a berretta 92 shoved down in the front of his pants and hanging in there somehow. He went on to the pizza place next to where we were going where I assume he was conducting a business meeting. Seeing the full sized berretta in those sweat pants was instructional. There might have been a time 20-30 years ago when someone might have felt somewhat ok with a NA derringer in his pocket, these are different days and they seem to be getting worse.
