[jcnesqmba]

yeah kind of but I think its really the philosophy. Because pulling a gun can really escalate a situation, you dont want to do it unless you have to. If you are correct in determining that you have to when you pull it, then the same threat that caused you to pull it should also be a threat that justifies using it.

Maybe a better rule is "if I pull my gun, Im planning to use it, unless sometime between me pulling the gun, and thereafter firing, I am given reason to believe that I no longer need to fire. Something changed from before drawing and after drawing, that makes the plan to shoot, no longer supportable. This goes the same for between shots.