Stuck at Walmart Barcode Scanner Broke!

I was at Walmart today and was using the self check out and you wouldn't believe it, but the barcode scanner broke. It just simply quit working! I am half way through my order and it just shut down. Nothing worked. So the lady came over and I had to move to another register. That is the FIRST time that has ever happened. It must of just gotten over worked. Maybe Walmart better check into replacing it's scanners before it happens again.