Most aggressive entrepreneur homeless folks in the nation = Atlanta.
They go up to any white person and offer them "protection" for a couple of bucks, basically saying that Atlanta is a dangerous place and they'll walk with you a few blocks to keep you safe in exchange for a couple of bucks.
I laugh at the folks I see on the freeway exits, especially the ones way the hell out there in the suburbs. But the ones outside the Mission downtown, that's for real right there.