Now I can't say it is as Ghost or spirit joking with me, but several times over the last few years my TomTom GPS will turn on by itself. It is in a cupboard, away from anything that could touch it. And the thing is , the power button is recessed and you have to hold it in for a couple seconds. Ghost or 3 letter agency messing with me, who knows. I have mine programmed with Homer Simpson voice and when I hear it I just laugh.