Oh everybody thinks they can steal using barcodes. Some bozo realizes that UPC barcodes contain a unique number that identifies an item, not the item's price. Soooo, reproduce the barcode found on a cheap widget and slap it on an expensive widget. If the cashier doesn't notice the brand/price difference, you save money. Or should I say you use bar codes to shoplift.
Come on folks. Stealing is stealing. People have been teasing me about it since I began writing barcode software 19 years ago. Yes, I could. No, I haven't. No, I won't. Now go outside and play in the traffic.