This thread seems to be veering over a bit, but all of this brings to mind an episode when I was a 'young farmer' performing in the vicar's Christmas concert on a school stage. I was 15 and had arranged for my boyfriend's band 'Everything under the Sun' to play 'Summertime Blues'. So they set up their equipment, pulled back the curtains and went hell for leather into the number. The head master of the school went rushing to the electrical supply and unplugged! He said he'd been outside the building and it was half a yard off the ground! Did the ground open up for me? Does it ever!