I know of a few tales of them attacking full-grown adults in Georgia, there was a story about in in Georgia Outdoor News a couple months ago, a 19 year old got mauled by a pack of three of them while hunting.
Like it or not, the southeast is *not* their natural habitat, they were introduced into Alabama in the '50s as a game animal and spread out from there. They have a detrimental impact on native species like Bobwhite Quail and Deer, and are an agricultural pest, killing chickens, pigs, goats, etc.
And the fact that they are so bold as to be seen by you while they are hunting means that they've lost or are losing their fear of people, and that is when they become very dangerous.