I'm not following you, I feel it's alot less stressful telling some maggot to take the register or whatever else he wants when he is pointing a gun in your face over someone else's shit than getting into a gunfight over it or chasing after him after the fact.
There is a reason why bankers are told to just hand over the money during a robbery, someone else's money can be replaced, shot bullets cannot be taken back.
Shitty Cop training is irrelevant to this type of situation.
Is your life or massive legal troubles worth chasing after and getting into a gun fight with someone who just stole something?
We are not talking about getting mugged, assaulted or a home invasion here, we are talking about a thief already out the door and going after him shooting. It's not a good play no matter how you might justify it, the clerk is not a crime fighter, again stolen money or bags of groceries are easy to replace, getting shot isnt.
Opinions vary, my stance is let the dude run off into the night and go back to being alive or not jammed up legally