I was out shopping for some baby clothes. I happened to pass by the shop's counter. There were new items being prepared for display. A zebra zm400 was busy churning out new bar codes for the items. A clerk was sitting in a corner tagging the new items. I watched in amazement at how systematic the clerk worked. She looks like a robot and I think she tagged hundreds in just a few minutes. Some customers milled around to watch her. She gave us a glance and a wide smile and went back to work.