The overarching concept is to be conscious of when you inconvenience other people (like customers), and avoid it at much cost (but not any, of course). This se

The overarching concept is to be conscious of when you inconvenience other people (like customers), and avoid it at much cost (but not any, of course). This seems to be the cornerstone of Western etiquette. It can be different in Asia, where it may be more important to "save face" and let others also save face.