I live in the Bronx and am often in some of the worst neighborhoods in the country so I am not in the "violence won't happen" camp. I just become curious when I hear about people from suburban America spending lots of money/time preparing for muggings/break-ins while generally ignoring their obesity/smoking/etc when they rarely even know someone who has every been assaulted.

As far the best "equipment" to survive an assault from an armed assailant who is intent to kill you with semi-automatic weapon for no reason while in a firearms restricted zone in rural/suburban America? I suggest body armor, a fitness regiment and the previously mentioned situational awareness.