But the retail examples were particularly interesting, such as Subway putting them on employee shirts, which is a place that employees report no one even tries to scan. But our favorite, depicted here, is a sign on how to use QR codes. And to give the lesson? Yep, the shopper has to scan a QR code.
QR codes have always been deceptively easy to use, for anyone other than shoppers. Business Insider recently some of the worst QR code deployments it could find and it's worth a look.