Working retail is not a fun gig. In fact, most customer-facing positions are actually incredibly challenging. It's not just about making people happy. It's about managing the people who aren't happy - and that includes people who, based on their personalities and how they treat others, will probably never be happy. While my favorite job was working at a fish market in Cape Cod, the fun and food also came with having to help entitled rich people on vacation with their white-clad families. It was…