Uh, there was this thing called the "Rebel Yell" during the Civil War that struck fear into the hearts of the Yankees.
I never thought about the civil war, I was describing the regional differences when it comes to a fight.
In my personal experience as a Texan and in conversation with northern transplants to the south, one thing the yankee has to learn is that a good southern boy won't trade street jive with him, instead the southerner goes quiet, and violent, once he has decided the fight is on.
Several yankees told me that they thought they had won the peacock strutting with a southerner, only to find out after the beating that (white)southerners don't do the peacock thing.