I remember some of the Southern films growing up whether B or mainstream that gave a sense of it at times being a fiefdom off the beaten track where they were a law unto themselves and wanted you to know it.

It didn't matter if it were civil rights workers, or hippies, or minorities... if they determined it was in their interest or merely pleasure to give you grief, you were going to get it.

Even the catchphrases have a dark undercurrent.

"You ain't from around here are you?"

"You in a heap a trouble, boy."

Now, there's dogwhistles when some things ought not being spoken too publicly.