My daughter recently had an unplanned "remote learning" day because of snow. One of my daughters assignments required her to log into an app. At school they do

My daughter recently had an unplanned "remote learning" day because of snow. One of my daughters assignments required her to log into an app. At school they do so by scanning a QR code they keep in the classroom. The teacher sent a picture of the QR code. I found myself in the hilariously absurd situation of needing my laptop to scan a QR code it was displaying on its own screen. I took a picture with my phone and then presented the QR back to the computer. Your comment reminded me of this.