Every profession needs what academics call an "occupational mythology" to sustain it, a set of personal and social dramas, arrangements, and devices, as sociologist Everett Hughes put it, "by which men make their work tolerable, or even make it glorious to themselves and others." As hard drugs are to the hard-rocker and tattoos are to the NBA player, so booze is to the journalist--even if he doesn't drink.
The journalist likes to think of himself as living close to the edge, whether he's covering real estate or Iraq. He (and she) shouts and curses and cracks wise at most every opportunity, considers divorce an occupational hazard, and loves telling ripping yarns about his greatest stories. If he likes sex, he has too much of it. Ditto for food. If he drinks, he considers booze his muse. If he smokes, he smokes to excess, and if he attempts to quit, he uses Nicorette and the patch.