as apposed to dieing, i dont see what your question is.
you are saying that if held at gunpoint by an obviously "postal" enraged guy wielding a gun, and you had a gun hidden on you;
that you would take your chances that he may not shoot you? this wasnt a store robbery where bystanders can just quietly wait it out, everyone can clearly see he was there to kill.
anyone would take a chance with the gun they held.