Negotiating relations with your coworkers can be tough: Too-friendly? You may be seen as a flirt. Too cold, and then you're just a bad person. Subtle stuff.
And then there's office life as conducted in the fictional 1960s via our friends at Sterling Cooper Draper Pryce. Not much nuance there, just huge drama and major political incorrectness.
Here's a look at five totally obvious ways you should NEVER behave at work in 2012 courtesy "Mad Men." The latest season just came out on DVD this week. Enjoy: