As I taught him the finer points of shirts and socks (a good matching game, btw), he started to get grumpy because my clothes came out better.
Practice buddy, and any job worth doing is worth doing right. And if you can't do it right, practice till you can do it.
2 minutes later I was struggling to keep up.
It didn’t matter if another checkout was open, people would stand in line to meet Joe and get one of his inspirational sayings with their weekly shop.