We're all familiar with the term "self serve." It's a lot like the phrase "help yourself." Why is it that some people just can't figure that out? Of course, I'm not talking about those that are physically incapable. I'm talking about a healthy, average member of society that just can't take the time to stop and learn how to interact with the world around them.
I don't know how many times I've seen someone standing at a kiosk in Sheetz or the self checkout aisle at Walmart pounding on the screen like a chimp gone wild. The typical problem I see at Walmart is impatience. Wait the five seconds after you place an item in a bag for the scale to weigh and measure it. Pushing on the scale, and banging on the screen is not going to help you, or anyone else in line behind you.
If you can't participate in the modern world, please use the normal checkout line and leave the self serve checkout aisles to those of us that *can* help themselves.