I understand what you are saying, but in reality if the criminal wants a gun he will get one and as for the police they can not be expected to protect everyone.
This thread was not about the police having guns or not, in a perfect world we would not need the guns. My understanding of this thread was about self protection or protection for Piamed's wife and I was just giving my opinion about what I would do if I was carrying a gun.
What other people do is their chioce but to me if you are carrying a gun and are confronted by a robber, with one, it seems silly to just show him you have one too and not use it.