Living in the heart of it I go where I have to when I have to. Sometimes even stopping at places where some of you folks would drive right by. Head is most always on a swivel.
Again, with the concept of Situational Awareness as being the #1 Self-Defense key...with one's head-on-a-swivel...is the best preventative medicine against attack.
And, at the minimum, would allow you see, acknowledge/recognize and respond or begin to take steps to prevent the issue or begin to respond to the issue and get one's self out and in front of the situation, in a pro-active manner, either before it happens, or at least with enough time to be able to respond as necessary to it.