Tuesday. 9.45am. Coffee is served. Some hardy types are already looking dreamily out of the window.
"There now follows a test of the fire alarm system. When you hear the fire alarm, please do not evacuate the building."
Ten minutes earlier...
...an excitable, bearded figure is seen talking to camera in the car park.
"Earlier today, we replaced all the fire alarms in the headquarters of Her Majesty's Revenue and Customs with a Brown Noise Generator. When it goes off, it will ensure that each and every living soul in that accursed building will involunarily soil their undergarments.
"Now, with the flip of a switch, let's see if they're GAME FOR A LAUGH!"
They were not Game for a Laugh.