Nigel gave the lamp a cautious buff and small smoking red letters appeared in the air. "Hi," Nigel read aloud, "Do not put down the lamp because your custom is important to us. Please leave a wish after the tone and, very shortly, it will be our command. In the meantime, have a nice eternity."
Terry PratchettSister Mary was a nurse and nurses, whatever their creed, are primarily nurses, which had a lot to do with wearing your watch upside down, keeping calm in emergencies, and dying for a cup of tea.
Terry Pratchett