Was in the car the other day, me in passenger seat, dd behind me. I could see her in the wing mirror and she was sucking her hair, so I told her to stop. She said how did you know I was sucking my hair and I said I've got eyes in the back of my head. Of course she didn't believe me, so I told her to do something else which I could see with my extra eyes. This went on, holding up fingers, pulling faces etc. At first she was amazed then got a bit freaked out (she's a bright 8 year old!). So in the end I had to come clean but it really is funny