People living in a snooty wealthy bubble get 'really fucking scared' pretty easily. It's not like drug addicts sitting on the sidewalk go out of their way to attack strangers walking by in the middle of a busy public street. I'm not recommending you find a big angry looking person and insult his mother.

There are lots of people with kids who live in the Tenderloin and presumably pass through their own neighborhood at all hours.

Walking around near poor homeless people now counts as 'child endangerment' I guess...