"In the South, there's just more folks who need killing."

[Shawnee123]

then tested for cortisol and testosterone levels as well as assessed with paper-and-pencil tests. Sure enough, Southern males in these experiments showed significantly stronger physiological and attitudinal responses than Northern males. In another study, observers stationed in the hall (pretending to do homework but actually observing closely) noted whether the subjects' reactions to the insult were amusement or anger. Southern subjects were significantly less amused and marginally more angry than Northern subjects.

The reactions were not violent, they were just justifiably more angry and "showed stronger physiological and attitudinal responses."

They didn't beat the shit out of the asshole who called them asshole.