WATCH!: How FAST An Attack Happens, And How Quickly You Can Go Down:
Instructive: gives a good idea how having a gun doesn't have to help one iota - even when the attacker is not armed. And
the BG may well know how to bring you down as fast and sure as a Navy Seal:
Video - Breaking News Videos from CNN.com
(Video may take a few seconds to load.Be patient, it will.)
-So what weapon do you need in such a situation?
Very difficult because the BG dresses for his "job", sneakers etc But awareness can still let you feel danger from behind, a faint sound, slight shadow etc - or just a "feel". Obey the imperative to glance behind you.