Your dental nightmares come true

We are currently over-seeing some building work at a dentists. On my site inspection today I wondered why, on entering the waiting room, that all the patients looked a bit pale and nervous.

In the background I could hear the familiar whine of the dentists drill. Suddenly an enormous judder throbbed through the waiting room, accompanied by a loud, deep drilling noise - the noise of the mad dentist of your nightmares...

The poor patients had no idea that beneath them we are carrying out demolition work with a pneumatic drill!