I guess I have to mention the instructor I took my conceal carry instruction from. He told my class that he has given conceal carry class to a group of Nuns who had been robbed when their car broke down. The Nuns were granted permission from the Arch Bishop to obtain their conceal carry, their reason being they were often in charge of children and what may have happened if children had been present when they were robbed.
The NRA publication American Rifleman ran a story about the Von Mar shooting here in Omaha and how a conceal carry holder was there but had gotten to the front door, saw the sign banning conceal carry, so he returned to his car to leave his weapon before going in. When the shooting started he said he was close enough to see the shooter smile. Now the question I ask myself here is what if he had his firearm and was able to put the shooter down and in the process had saved only one life? One would have been worth it of course, the real question is how many more might he have saved.
The bottom line is, "You have the right to defend yourself" and God knows this and I think approves of it. If He did not and we all took the stance of cowing to bullies, we would all be hostage to a few insanely violent people.