We all apply these to our own situations. In mine the BG could get out of sight in three strides.
I have a steel door to the house, but the wife likes to be nice and unlock it for me when she knows I'm coming home. The dogs while good for warnings aren't trained attack dogs. I've made friends with vicious dogs in seconds before, so I have no delusions of my dogs stopping a potential intruder. They do make a good amount of noise.
I figure this is one of those criminals I've been told about by some cops. They do home invasions for the thrill of it. They want you at home and they are tough and bold. They improvise better than most and since they want the confrontation, aren't going to get out of dodge quickly. Maybe they figure get inside, get a hostage and get your gun. Who knows.
I think close pursuit is the best defense for this one. I prefer a good offense anyway. I figure the dogs won't stop the BG, but they will point out where he is for me. Yell to the wife to get her little friend out, be ready and call 911. I won't come in the bedroom without warning her first. Then I use the dogs to find the BG. If he's smart, they never are, he left already. If not then I deal with that when it happens.
I think what AZG23 was saying is that he never has vunerabilities in his personal protection or the protection of his family. So his door would be locked and he would shoot the BG. Or even if the door was unlocked he is fast enough to get the BG before he could enter. My situation is a bit different in that there are lapses in security for different reasons and I am not so fast I could get the BG. That brings up another scenario...