The office loo has a motion-activated light, sometimes I am there listening to my iPod and lost in thought, finding a couple minutes of quiet, undisturbed. Suddenly, click, and the whole place is dark, and I hold my hands high above my head and wave them around until the light kicks back on. Sometimes I wonder if I can just keep sitting there, in the dark, like in a sensory deprivation chamber, how long before someone wanders in and triggers the light on again? And what would they think, considering themselves to be alone, if I then made noise in the neighbouring stall – a ghost! A poor lost soul in CG, doomed to haunt the dark bathrooms of visual effects facilities forever…