It's pretty clear what's going on, Robert. But I commend your concern. It's a concern I always have too, and I have a number of what I consider to be fine street shots I won't post or display for that very reason. Pictures of hoboes and the mentally disturbed are particularly prone to that defect.
I think Graham's point is right on the money. Although there are several books that seem to think street photography is about the quirky or unusual, anyone who's studied the masters of street understands that it's not a "gotcha" exercise. There has to be a there there -- something that informs you about the human condition (to use a wretched cliché).
But in the US there's no concern about invasion of privacy. If you're in a public place the law says you have no expectation of privacy. Looking at the photographs of Kertesz, Chim, Doisneau, Ronis, Brassai, and Riboud, it's clear that used to be the case in France. A pity it no longer is.
