I do not know the laws of the other 48. I do know the laws of the two states I regularly carry.
However in my book finding someone in a shed, I don't have a garage, would not automatic be a death sentence. A threat to the well being of my family or friends would be. If you are in a state that has broader laws on the use of deadly force then it is a decision you have to make. I have thought about and made my decisions.