Jim lad' I'm sorry I have to take issue wuth your statement :-"Some time in the sixties (in Scotland) the Supermarkets made their debut. Layers and layers of goods were neatly arranged in long aisles which were virtually unguarded, save the occasional dome mirror. And so, the professional shoplifter was born."... Professional shoplifters have been on the go a lot earlier than that I can assure you!