In the middle of the night, when you're ambiguously ethnic, like me, when you're brown, beige, mauve, siena, one of those lighter browns in the Crayola box. You have to be careful of the cops and robbers, because nobody's quite sure what you are, but everybody has assumptions.
I like to write sad songs. They're much easier to write and you get a lot more emotion into them. But people don't want to hear them as much. And radio definitely doesn't; they want that positive, uptempo thing.