http://www.bbc.co.uk/news/world-europe-13454160
There were about 100 guests and 20 prostitutes were hired.
A German business newspaper said the prostitutes had worn colour-coded arm-bands designating their availability, and the women had their arms stamped after each service rendered.
It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt...
-Mark Twain