OK, I agree that you must arm yourself and be prepared to DEFEND yourself at all times.
I will make a suggestion to all that are pro gun, as I am.
Please, please use careful judgment in choosing your words. The reason I state that is that if you were to ever have to defend yourself in such a manner that the perpetrator was indeed terminated, some of your words could be used against you to build a case of premeditated murder.
Please, please do not use any words such as "If i'm ever in that situation I will kill them." or "They better not cross me because they will be DTR."
Or as no name has already posted "The criminal had a choice to avoid the encounter. My only choice is to be a victim and put my fate in their hands or drop them and make sure they are DRT. I made my choice long before they ever made their fatal mistake in their choice of victim."
What is essentially being said here is that you have thought about this scenario before and if it ever happened that you would kill. From my understanding, that is what premeditated murder is, you think about it before and then you kill. (Simplified of course)
If these are your opinions ,than that is fine, just please do not voice them or put them in print because these could possibly, in the end, cause harm to your case.
Disclaimer I am not a Lawyer so do not take these comments as legal advice. If what I have said causes the wheels to turn in your head than be all means please contact a lawyer and ask him the questions.
I would rather be safe than sorry though. As I am sure that in sometime in my life or during my career of REI I will inevitably be put in a situation similar to this.