I carry because I can and I have not shot anyone...nor do I want to. As a trained CHL carrier, you are trained to deal in certain situations. Everyone is different. When to use force to to stop..and when to kill. To protect your life and property is a good right. If ya unarmed, and someone try to carjack ya...I don't think harsh language will stop them.
Granted, if they have a gun to your head, give up the car...then ya shoot out the tires after they drive away. No One wants the conscience of killing someone on their mind over a car....BUT...if a trespasser is found in the house..He can talk to St. Peter.