Late to the thread, but a few things come to mind.
- always have a gun on you (a small LCP or P-32 is fine)
- always have access to a 2nd gun - in a quick open type of lock-box
- load with some type of compressed pre-frag'd round
"With great power, there must also come great responsibility." - Stan Lee
"All that is necessary for evil to triumph is for good men to do nothing." - Edmund Burke