Picture this...... you are on a mountain road, on a dark, wet night. You have a hot date. You get a flat. You pull over. Open boot to get jack etc out. The local maniac comes roaring round the corner. He is confused by your bright number plate lights. He pulls to the left, thinking it's an oncoming car. You panic. You wave frantically but he doesn't seem to see you. He strikes you a glancing blow, flicking you onto the adjacent rail track (did I not mention that?) the night express is coming.... you scream but the roaring loco bares down on you ..... you can't move..... closer... closer.... closer.... see? Is that what you want to happen, coz it will