Whichi is probably why someone else made a crack about moving from Louisiana. That last sentence sounds like really heavy Cajun patois -- but with one exception. I've never in my life heard a Cajun use the "don't be" construction for "is not". A Cajun would be more likely to use "ain't" in that context. Throwing in that particular little phrase changes the presumed identity of the speaker and does make it rather racist. (We won't get into the whole subject of whether or not making fun of Cajuns is racist.)
I had a language professor in college (in Louisiana, btw, though he was not a native), who used to call that construction "the weebies". He defined it as a peculiar way of conjugating the verb "to be", and he used to come down like a ton of bricks on anyone who said any of the variations in one of his classes, regardless of what color the speaker happened to be.