[BillCA]

I'm with Jim Keenan on this one.

None of us are required to take any action. In the course of a robbery, if the robber simply demands the cash and isn't otherwise indicating violent tendencies, we should all be the best witnesses we can.

If he becomes violent - pistolwhipping the clerk or another patron - then I may decide to intervene. Or not. If I can't take a clear shot, I won't.

A huge problem in most convenience and grocery stores is that the shelves are merely concealment. In a gunfight, bullets can penetrate at least one aisle, maybe several. It would suck to survive only to find out your bullet struck a woman crouching low & out of sight to protect her two kids.