Sighs, as someone this has also happened to (not in Baltimore but in a really nice neighborhood in Berkeley, California) the primary lesson I drew was to never assume a group of young boys is unthreatening. Clockwork Orange was a cautionary tale, as far as I'm concerned, and 2+ boys is enough to freak me out now. As soon as I see a group approaching, I cross the street and start scanning for the nearest place I can duck into should they follow. Whenever possible I don't carry valuables while walking, but, I do try to be sure to carry cash so I don't piss them off and get shot, raped, or otherwise injured out of boredom, anger, or malice. When I was robbed at gunpoint by 15 year olds I had nothing on me and they seemed insulted by that. Carrying a 20 in an empty pocket is now a kind of reflex - better to have something to hand over than my life, just in case.

I'm sorry, neighbor. I never would've seen it coming in that alley, either :/

I see you've got some other offers of material aid in this thread, but if something from your kit is still missing reach out. I'm fall cleaning and down to help you out.