I moved to a new office I found that I was extremely tired and would get exhausted after less than one hour and just wanted to leave the office.
In fact I could not stand being in the office for more than a few minutes. I also noticed that everyone left the office around 5.30pm and people looked tired and not well.
During my first weeks at the office a key staff member had a very serious motorcycle accident and I saw many people bruised and limping from motorcycle accidents in the first few weeks I was there.
So I started to ask around and it turned out that some of the staff were frightened to be in the office at night especially in the toilets as they often heard voices and noises that were not their colleagues...
...I then found out that over the past few years several people had jumped to their deaths from the roof of the office building. The business I was asked to run did not grow in the previous 2-3 years.
So I asked Jackie to clean my office.
Of course she cleaned the whole building focusing on the floors my company held.
After the cleanse people didn't want to leave the office. They worked later, were noisier, happier more animated and the business was the only business in the region to grow that year and we grew considerably.
Also I have not heard or seen anyone in the company suffering from a motorcycle accident!!