I went to a meeting the other day in a building with a touch screen registration system. The woman in front of me was struggling with it. Every time she tappe

I went to a meeting the other day in a building with a touch screen registration system. The woman in front of me was struggling with it. Every time she tapped the register button the system decided that some part of her was a badly formed barcode, printed an error message and exited back to the menu. She eventually got it working by moving to the side until it wanted to take her picture.