Blue-collar customers were always my favorite. They don’t treat you like a servant. They don’t tell you, “We like the help to use the side door.” They don’t assume you’re an idiot just because you wear a name tag to work and your hands are calloused. The books on their shelves aren’t bound in leather. But the spines are cracked. Most of them, when you turn on the TV, it’s not set to Fox. They’re the only customers who tip.