It was somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember Richard Porter
saying something like:

But it's difficult to see how the
rack could have been dead when fitted and live some time later unless
something was disturbed or the wall became damp.

The feed to the cooker hood may have been taken off the back of the main
cooker switch which was switched off at the time of the rack
installation.