Well, I have heard that if you're confronted by a bear, it's helpful to stand up on a fallen tree or something to make yourself tall and then swing your arms and yell and such and make him believe you are bigger and more badass, so maybe that's what this sweet little old gentleman did. More than likely if it was BF, he probably just left cause the man looked insane. However, the hills of NC could potentially harbor one. I think I'd like to be BF there, especially when the fall colors come. It's lovely countryside.
Yeah, I've heard that making yourself look bigger can work with some other animals too.