I'm sorry it took me so long to respond. I was busy reading about the gang war that happened just a few miles from my house where 7 gang members were shot. I don't know where you live but where I live home invasions is one of the fastest growing crimes since the economy went south. It's a real threat that could happen to anyone anyday.
I have 2 kids that are grown and gone and I managed not to shoot them and I'm pretty sure I won't shoot the other 2. Anyone who is the head of their household needs to know who is there. Not once did I ever say not to be sure of your target before you shoot. I don't know about your home but mine has enough light in it at any given time to to do just that. (barring a complete power outage and that would change everything) I do keep a flashlight by the bed in case that were to happen.
If a wayward drunk enters my home (that is locked up tighter than a drum) he's probably going to get shot. If a kid comes in to steal a laptop, he's probably going to get shot. If my kid is sneaking back in the house, I will know and not shoot them. My kid sneaking into the house will not even closley resemble a home invasion. If something goes bump in the night, the first thing I do is check on the family and I know exactly where they are at.
Different strokes for different folks. The main thing is to be ready because it could happen to you.