I frequently walked home from work in Oakland at 1am when I worked a night shift. I always wore headphones too and people would tell me I was being stupid. After about a year and a half of this I was coming up a hill to a four way intersection when someone popped out from behind a fence just before I passed it, grabbed my shirt and stuck a gun in my stomach.
He ended up being not the worst and let me keep my keys and license when I asked.
It only takes once, and the consequences for her would probably have been much worse.