There are cases of CCW people shooting the bad guy but they are
generally not hyped up like the cases where they don't. In Dallas, the
"open carry" people had more fear of being shot by the cops than the
shooter. The guy I talked about was arrested and held for several
hours, He still had not got his gun back the last time CNN had him on.
That is plenty of reason to get away.
Well, then, perhaps the lesson is that "open carry" is great for
intimidating shoppers but not so much for taking care of bad guys,
especially when there are cops present.