"There was an intruder in my house. I was afraid for my life and that of my wife. I grabbed the nearest object and hit the intruder when he came at me. I did not know what the intruder wanted to do, and I was afraid for my life."
Name, rank, and serial number.
I always assume that anybody forcibly entering my home intends me harm. How can I prudently assume otherwise?
Being a pacifist a la Ghandi has to do with political strategy and tactics, not with allowing an intruder to run about your home willy nilly and hope he doesn't hurt or kill you.