Most people feel pretty safe at home. Even in the nice neighborhoods, but don't let your guard down. Your call to arms can come at anytime.

This is exactly why every home should be responsibly stocked with firearms. Now, I wouldn't recommend a pistol for any type of home defense. The obvious, and most over-stated choice is by far a trusty pump action shotgun. And if you do, take it to the range once in a while and learn to use it with judicious marksmanship.

Beyond that, start paying attention to the world around you. Situational awareness is your best defense in every situation.