Another strange little experience this week. Out on the congested roads in the grim north of the UK, I had to stop at a red light on a pedestrian crossing, cursing slightly because there was literally no one around to cross. This crossing is set on a busy but straight road with a wide pavement which is 6 or 7 meters wide with a clear view of the wide corner of the road junction, the pavement on both sides ahead and the road. Only a very narrow lamp standard positioned about 5 meters in front of the crossing. I was watching the lights for the them to change and the adjacent pavement when suddenly , apparently out of nowhere, a very large lady stepped (from the nearside) onto the crossing. I almost jumped, out of surprise at her appearance. Obviously a trick of the mind or sight, but somewhat disconcerting nonetheless.