I keep a loaded Kimber .45 in the nightstand, but if time allows it, I'll be reaching under the bed for my old Stevens SXS 12ga sawed-off (20-inches). IMHO, a good scattergun is the best option. Less chance of a bullet going through a wall and hitting someone sleeping in another part of the house. Plus, just the sight of a double-barrel staring an intruder in the face will probably make him wish he was somewhere else. Here's a pic of my old SXS. Its not pretty, but I'd hate to be on the receiving end of it.[img]
If i were you wouldn't go bragging about a sawed off shotgun even if you saw off a shotgun barrel but dont go below the 18.5 inches it is still illegal according to the BATF. So even sawing off a barrel at 20 inches thats still considered a sawed off and from what I hear that has a pretty hefty jail sentence and fines attached to it. So I hope for your sake you were just kidding about it being sawed off and that the gun is a factory 20 inch barrel.....