And there's the people that more or less require the use of headphones if you want to get anything done: the two or three people that continually narrate every aspect of what they're doing loud enough for everyone to hear, the handful of people who desperately need attention and validation at every possible juncture, the project managers having a ball pretending every day is an episode of The Office, and if you're really unlucky, the fire alarm that goes off at random intervals throughout the day that everyone's learned how to ignore.