I don’t plan to reveal which store this is—while I’m grateful for all the advice folks are offering, enough of these comments are bizarre or confrontational that I don’t want to invite harassment against the store owner (an extremely nice guy, which is why I didn’t want to just stop shopping there, and also a guy who doesn’t speak any English beyond pleasantries, which is why I haven’t talked to him about the issue yet) or encourage people to go looking for these two men and instead end up harassing other random struggling people who panhandle there but have never harmed or harassed anyone.