Used to work in a small office in the basement (almost "IT Crowd" in all its glory).
The two people I worked with smoked like chimneys! It was awful. Everything was covered with a light brown sticky substance. I used to go home stinking of smoke. I hated working there most of the time (the site was amazingly interesting - IF you ever got out of the basement, which wasn't often).
Health and safety there was pretty much non-existent (odd, because elsewhere on the site H&S was very important). My first day, I was told to be careful because they thought the roof aircon unit was about to fall THROUGH the roof.....
Fun days.
Biting the hand that feeds IT
