I found this U.K. forum for technical issues related to theatres while browsing.

One or two of you know that some years ago I was involved with amateur dramatics on the sound and lighting, so I can certainly testify to the fact that one can find "inventive" solutions to problems!

Check the "Dodgy electricians" thread in the "Electrical & Power" category. [Linked Image]

http://www.blue-room.org.uk/