That Border Collie would be mine by now.

And not just because it's a Border Collie, lol.. but because I hate to see animals out by themselves, even if they know where they are, even if they won't leave, even if they don't have owners.

I would seriously pay that woman a few bucks to take care of her dog from now on.. because that's crap. She obviously doesn't want him/her very much if she lets him/her run around.