Am I??? Check the law on self-defense.
Yes, you are. You have no idea what happened in that garage.
You are drunk and on my property. You are advancing on me through my garage despite being verbally warned that I am armed and prepared to defend myself.
I shoot you until I deem you are no longer a threat. I’m a decent shot, but I’d still probably dump about half a magazine into you just to be sure. That would be SEVEN rounds of 10mm 180gr XTP’s.
Under Castle Doctrine... Your first mistake was coming on my land uninvited. Your second was not leaving when you were told to.
As it should be.