I was actually in my local co op last week (edit - time flies, no, it was a few weeks back now!) When a group rushed in, literally ransacked the place - openly filling up their bags, then brazenly quickly walked out. Absolute cunts.
Staff couldn't do anything. Said it's happened numerous times before. In this case it was a lot who were parked up on the local field before being evicted and moved on.
Well yes, of course they couldn't do anything. I used to run a large convenience store before leaving retail for good around 15 years ago - I know the score. But it didn't stop ruining their day, and making them feel helpless.
The issue is the knock on effects. One of my staff members back then had her ribs broken in one shoplifting attack, and that was unprovoked. Police never caught the guy.