Mike Harrison 
Ruby Tuesday [PDF ebook] 
An Eddie Dancer Mystery

Paul Menzies is an out-of-shape, middle-aged advertising executive, who arrives at work one morning to discover he s lost his job. Downsized. That evening, he stops by a bank machine to check his finances. Ahead of him, a scruffy young couple is arguing about the state of their own finances. When the muscular husband, Victor Shriver, loses his temper and smacks his wife hard, Paul steps in and hauls the young thug backwards across the lobby. Which is the only clear image caught by the bank s security camera. In the ensuing brawl, Shriver puts Paul in hospital for nearly a week.