For me the bottom line is always 'will someone get hurt or worse if I don't act?' That is my reason for carrying my S&W. I don't carry to see justice served or to protect the property of anyone. I carry to preserve life, either my own or someone else's. The last thing I want to do is make a situation worse, hence I will act with great restraint.
About the only circumstances under which I'd shoot in the scenario presented in the OP is if the bad guy was to make us go into the back room. Such actions sometimes don't end well for the victims.
About the only circumstances under which I'd shoot in the scenario presented in the OP is if the bad guy was to make us go into the back room. Such actions sometimes don't end well for the victims.