I worked for a guy (who is actually a great guy) who, while excitedly showing me the floor plan for the proposed open plan for our team, exclaimed, "I want to create a vibrant, energetic atmosphere." and asked me what I thought.

All I could think was, "What you see as vibrant is really your employees shooting the shit and not getting any actual work done."

He went with the plan and I found myself staying until 7pm and 8pm most days because I got more work done in those 2-3 hours at the end of the day than I did the other eight because of all the interruptions.