* Home is wired with commercial style emergency lights in case power is cut or goes out.
* There are no windows on the first floor, just the garage door and main entrance door, both are reinforced. Garage door is locked at night with a safety bar from the inside so it can't be forced up. Entrance door frame is metal with a metal door and two hardened locks (only one is accessible from outside).
* The only way to the second floor (living area) is a single stairwell off the main entrance door and I wouldn't want to be stuck in it with my scared/shocked/angry double at the landing pointing a .308 at me.
* If I'm on the second floor I can have a rifle in my hands and be at the stairs looking down at the entrance door within 15 seconds of hearing a sound from below.
* If I'm on the third floor I can have a pistol in my hands and be on the second floor within 15 seconds, probably less if I really pushed it.
* I figure it would take 2-3 minutes of kicking the front door for the bad guys to realize they aren't going to kick it in and give up or leave to find something to take the door down with.
* I live in a densely populated area and crime (for my town) is very low, almost nonexistent. I am across the street from the town's police department. The likelihood of a bad guy getting in and surviving me and my .308 down the stairs before the police drive the 50 yards to my door is unlikely.
* If someone should use a ladder to access the second floor from the outside I could have a problem but it's unlikely (though not impossible) for a smash and grab burglar to go to the trouble of setting up a ladder, too much time in the open, too much time to be seen by neighbors, no clue of how to navigate out of the home, hard to carry a weapon up the ladder and be prepared to use it immediately.