Perhaps more than any profession, writers are infamous for their bad, on the-job habits. In his heyday, screenwriter Paul Schrader would write exclusively at night, often until five or six in the morning. He fueled this with a lot of alcohol, nicotine, and cocaine (the latter, a habit shared by many of his actors). When working on "Taxi Driver," he kept a loaded handgun on his desk and sometimes tucked it under his pillow when he eventually did go to sleep. But of course, the most notorious habit of them all may simply be not writing at all. Call it […]