Only one that I can recall. About 20 years ago two friends and myself used to visit a few country pubs on a Thursday night in Sussex. Because of the drink driving laws we took a weekly rota where the designated driver stuck to half pints alternated with a soft drink. It was winter and the heater was full on. Suddenly out of a country lane appeared a luminous female figure dressed in servant's clothing of the last century, The figure seemed to glide half a foot above road level.There was a definite chill in the car until the figure passed. We were quite shaken.