prepared, does not equal a resolution.
do you run inside and get the phone?
do you wait for someone else to get involved?
You know the castle laws, they are in your yard, not in your house.
you can feel like your child is in danger, but is it immediate danger, is it danger of grave bodily harm?
the guy in the car is screaming don't shoot, while he moves around behind the door, where you can't see what he's doing. Then he pops up and prepares to either lunge at you or jump away, something is in his hand, it's black and you don't really know what it is, it's dark.
blam, you fire your weapon, you have three things on your side.
first, he didn't freeze when told.
second, he made a sudden move.
in his hand is a small cordless drill.
he's shot through the neck, breathing heavily through blood, dying in your driveway.
do you:
shoot him again
help him from bleeding out, and call paramedics/911
watch him wriggle on the ground thinking, "uh huh, that's what you get for stealing from me" then go to your garage fridge for a beer.