It is not the robber one is concerned with. Most robbers want money, not gun fights.
BUT, it's the nutjob that needs a gun that concerns me. That and fools who might just try to take ones gun.
Like I posted above, an OC carrier in Arizona did have his gun snatched and he was killed with it.
“We can evade reality, but we cannot evade the consequences of evading reality” Ayn Rand