No. Crime is spreading out from the "sanctuaries" to the "burbs."
I've always had firearms within reasonable reach, along with a bunch of cheap 10" $2.99 kitchen knives from the dollar store squirreled away around the house. I don't worry about the quality of the steel and sharpenability, they'll only be needed once and hopefully not at all.
I'm in an apartment building and though I have a deadbolt on the front door, I hang a noisemaker from the top edge of the door anyhow so when it opens it goes clanging to the floor.
In the long history of sometimes shady management changes, etc, who knows who's wandering around out there with duplicate keys. Additionally, the previous tenant of this apartment used to keep spare keys under the welcome mat.
Back door is on a balcony 12' above ground, but even so, I have a simple barricade I place there anyhow.
Paranoia is a survival trait. And you don't get to be 81 yo without developing a couple of suspicions about the rest of the people in the world.
See also,
http://www.armedpolitesociety.com/index.php?topic=61672.0Terry
Door clanger --an old automatic ashtray bottom, pretty noisy, hung from a thin piece of sheet metal stuck in the crack.