For about the first ten years of my writing career, I collected rejection slips like normal people collect photos from their family vacations, souvenirs of an extended stay in an alternate reality. Most of those nopes had a distinct theme: love your writing, love the rodeo action, but your characters are just too nice. Or as one editor told my agent, “She needs to rough them up.” I am embarrassed to say that I resisted for a very long time. I wanted my heroes and heroines to be smart and sensible, someone I’d like for a friend. I didn’t want to let them make dumb mistakes and bad decisions. But finally I realized that even smart people do dumb things. Life inflicts damage on pretty much everyone, and none of us is as together as we’d like the world to think. As Grace McKenna tells Hank Brookman in Mistletoe in Texas when he complains that his brother-in-law is too perfect, “Wyatt is as much of a mess as all the rest of us. He just looks better doing it.” But why are we so drawn to flawed characters? The easy answer is that the harder the battle, the more satisfying…