The only thing better than a good book is a good book discussion!  Walter Mosley's modern noir, "Trouble Is What I Do," follows Detective Leonid McGill, an ex-boxer  who's as agile at navigating both sides of the law as he was in the ring. Here, Mosley delves into the murky waters of history and racial identity as Leonid's agency is asked by "Catfish" Worry, a 94-year-old African American blues musician from Mississippi, to help him to deliver a letter to the daughter of a wealthy, ruthless, and incorrigibly racist white banker saying that he's her great-grandfather because of an illicit liaison he had with the banker's white mother. What will a desperate man do to hide his past, and will McGill and his family private eye business be able to stop him?