Fight back because the police are not going to do anything but take a report. I saw one jeweler who placed revolvers behind the display cases at 5 foot intervals. He had to put them to use one day when he shot and killed at least two would be thieves.
The classic example of that was in Richmond VA a few years ago. Ê men rushed into a jewelry store. One jumped up on a counter and fired into the ceiling. Three pretrained clerks pulled the preplaced pistols and took out all three in a couple of seconds. The raiders were an actual robbery gang that had repeated that sort of raid a few times previously and some jewelry stores prepared for when it was their turn. It only takes one such store getting hit to end a gang’s progress.