Fox is afraid of the dark

The Transformers star insists on leaving all the lights on in her house when she's not at home - so that she never has to return to a dark, empty place.

She says, "I've been afraid of the dark my whole life. If I go into my house at night and the lights have been turned off... I have to run from the door to the light switch to turn it on... I'm just afraid of what I can't see."

And her TV viewing doesn't help her paranoia: "I watch a lot of paranormal shows, like Ghost Hunters... and they freak me out."