For a few years here in Oklahoma City (well, okay, it was Del City, but that's another name for Southeast Central Oklahoma City) there was a military surplus shop that had an FFL located right across the street from Del City High School. Shop's still there, but no longer an FFL. While they were, though, local LE, military, and everyone else frequented the store daily.
It was probably one of the best gun shops I've ever worked in--especially once when a few things seemed odd about the clientele, and within fifteen seconds the lady behind the register told the two deputies, four airmen, and three Marines in the store to keep an eye out, passed me a 4" 1911, and shut the safe door with her toe. Turned out to be nothing, but still...