Marti Noxon used to work for a company that did "product placement" for the movie industry. When auditors came to check that clients were being correctly billed, the company's bosses took unusual steps.
How NOT to get a job in U.S. intelligence: Admit to being a pervert during your job interview. Somehow, though, that's exactly what happened to a perfectly normal, nice guy who we're calling "Matt" for the purposes of this story.
Amy O'Leary tells the story of a software writer at Apple Computer whose job contract ends, but he refuses to go away. He continues to show up at work every day, sneaking in the front door, hiding out in empty offices, and putting in long hours on a project the company canceled.