Reply #126: This discussion has been had here many times, but I'll post a synopsis again:

[PavePusher]

My property represents various investments of my time, thus my life. When someone steals my property, they are stealing various portions of my life. I have every right to defend my property from theft. I have no moral obligation to allow a thief to take my property in order to protect the physical well-being of the thief. I have no moral obligation to put my physical well-being at any greater risk I need to to do so. Thus, I will use the most efficient tools and methods available to me at the time to stop the theft, with the least possible risk to myself. If the thief does not wish to be physically harmed, all they have to do is cease the theft.

This is not a difficult moral equation.