If an intruder is in your home and has either A) a knife OR b) a gun, and looks threatening, would you shoot to kill, or shoot to injure him?
On one hand, you have an intruder who has broken the law and is in your home. Your sanctuary. Your refuge from the storm of life if you will. Your wife, children, and pets are now in jeopardy, to say nothing of your valuables.
On the other hand you have another life, who may just be in need of food and shelter. If you shot to injure, you could get him a nice longish hospital stay to get free meals, get treated to his wounds, and have shelter for awhile.
If you shot to kill, you would have to live with that for the rest of your life.
What do you do?