Sex in stairways = Bad.
Sex in Boardrooms, Waiting Rooms, Training Exam Rooms, Human Resource Rooms (but after hours only!) = Good.
Sex in oval office- good
Or on the bosses (company owner) desk with his 18 year old daughter who had started working there a week before, after hours of course. She was a wild, wild, wild one. Sigh. Alas, it was too much fun to be young. (True story, 25 years ago, she told the boss when they were fighting to spite him, I did not get fired, merely verbally reprimanded, and then invited to Thanksgiving at their house.)