Re: When to use your weapon...
I remember a post somewhere about a woman shooting a man in the back after he stole her purse. That seems like a good example of what I would not do. It just isn't worth the legal ramifications to defend a mere piece of property (I carry my wallet in my inside jacket pocket, BTW). If somebody really had to have that purse, they can take it. If they tried to kill me for it, that's another story.
When to use my weapon...At the range, as often as possible to practice, and God forbid the day ever arrives that I have to use it to protect my life.
"Miss Scarlet, in the library...with a revolver...."