Also, why do we never factor gun violence into these conversations about safety? In SF there are relatively few people walking around strapped. I looked it up, and in my hometown of Louisville, KY (which is no Detroit or Baltimore), there were about 130 gun injuries/deaths per 100k in a recent year -- in SF, about 30! Which is worse, getting shot, or avoiding poop on the sidewalk?
But also, for what it's worth, I'm a reasonably tall white guy. I think that affects how many unsafe situations I'm likely to encounter A LOT.