I get it- shoplifting. But there are reasons why people enter shops for something but the shop does not sell it, sold out or not in the size/colour, then leave empty handed.
I had it before where customers at tills don’t move when I ask excuse me. Then try to leave at entrance. Security guard says go out the exit. Explain that people are refusing to move. Or the door is switched on to open from the outside so have to wait for someone to enter to leave.