Maybe a homeless person would object to you taking pictures because you refer to homeless people as "bums."
Bum can also be homeless, but they don't have to be. lol
Actually, for the ones that come after you for change, i thought about offer them change for a shot. But, I am so broke that I can't even afford to do that. Wait, maybe I am a bum, with a camera. Haha.
[ Insert meaningless camera listing here ]