Unfortunately I live in NJ, if an intruders breaks into our homes we are suppose to attempt to run away prior to using deadly force, and than only after we warn them verbally of our intent to use deadly force.
I used to live in Japan where you had to use "like force". If someone broke in and had a knife, you could only use a knife or lesser weapon.
After Florida finally made it OK to actually protect yourself in your own gosh darn home+, I made the leap.
I hope you have a really big fat pointy stick!