This is kind of scary considering that I work an overnight shift and one of the black guys on it threatened a team lead (unfortunately the black guy wasn't fired like he should've been, but he was written up by the manager). The good thing I can say though is that the doors are locked at night so if they leave angry they can't just walk in again and start shooting. I am wondering how the guy got back into the supermarket in the story because I would think they would be locked up too.