Our friends at Four Pins have a whole guide for this one, but the basics are simple: don't stab anyone in the back, don't dog a coworker to the boss, and don't steal other people's ideas. Easy, right? Well as sure as water coolers and TJ Maxx button-ups, your office has more than its fair share of shine stealers. You know how the rest of the Yankees feel about Alex Rodriguez? That's how the office feels about this guy. They'll find a way to stab you in the back or throw you under the bus, and you'll just be pissed off when H.R. asks you to clean out your desk.