Stores also combat shoplifting by training employees how to detect potential shoplifters. Using CCTVs to apprehend shoplifters in the act requires full-time human monitoring of the cameras. The shoplifters were usually teenagers who stole small items such as chocolates, cigarettes and beer. Macy's has used to deal with suspected shoplifters. Con artists and shoplifters sometimes create a distraction to facilitate their crimes. Many large retail or grocery stores have a store detective to watch for shoplifters. Statistics suggest that 54% of all shoplifters regularly steal from convenience stores. For reasons of personal safety, LCBO staff are not encouraged to confront shoplifters. Diamond had taken over leadership of a large and expert gang of organised shoplifters. While Theo wanted to sell them, Karl believed they would attract shoplifters. The shielding technique is well known amongst shoplifters and store owners. Karl believed that they would attract shoplifters while his brother did not. Female shoplifters of this period were also called "Amazons" or "roaring girl". Also, shoplifters deactivating or detaching tags may be spotted by the shop staff. Items popular with shoplifters include cigarettes, alcoholic beverages, and fashionable clothing.