I bought 4 bottles of water today (yes, I know, exciting life).
The cashier carefully placed 'paid' labels on the top of each bottle to which I inquired, "Is that necessary?" She explained that "they check it on the cameras."
Anyone with any idea or experience if supermarkets really check paid stickers on water bottles? I am sure she was not lying but it seems a waste of time to track an item that has such a low value to weight/size ratio.
Also, any other info to share on how paid stickers are used with surveillance cameras?