In TN, I know that if someone breaks into your house, you could legally shoot them whether they have a weapon, displaying a threat or even trying to run back out the door, as long as they are in your house they can be shot. Does this also apply to someone that is for instance house sitting for someone? For instance, my sister in law is leaving for vacation and asked me to watch her house because of several recent break in attempts. If I am staying there and someone breaks in, can I shoot the intruder or do they have to be physically displaying a threat to my life since it technically isn't my house?
Thanks