Not a dog that barks... a dog that bites. A big one... maybe two.
Still, if someone is out to do you harm, nothing short of armed violence will deter them... goes for everyone; not just women. So, yes, live without fear.
I'll be interested to see if anyone comes up with a really good non-violent solution other than common sense, awareness of surroundings, etc.
Also, I really like the electrified lifelines idea
mm