If you forcibly enter somebody else's home without permission, you've already made a CHOICE, not a "mistake" as the relatives of deceased home invaders are fond of saying these days. You own ALL of the consequences proceeding therefrom, including getting shot. As alluded to above, your intended victims' response should be delivered without hesitation, restraint or regret until such time as you are no longer an immediate and credible threat to their life and limb, or to those of anyone to whom they have a legitimate duty of care.

I've never been shot. I consider not being a home invader or strongarm robber a major contributing factor to my not being shot.

If you don't want to be shot, don't put people in situations where it's a good idea to shoot you. In 9/10ths of such situations, they will gladly risk YOUR life rather than theirs. That's an eminently sensible decision on their part.