On my ride this afternoon I caught up with this chap. As soon as I got to his back wheel, he stopped so i carried on and thought nothing of it. At one time i looked over my shoulder and there he was, inches behind me. I ignored him and carried on until i got to some traffic lights. They were on red so i slowed down to stop. He just rode past me, had a quick look to the right to see if traffic was coming and went straight through the lights. Needless to say i did not see him after that as by the time the lights turned green again , he was too far ahead. What an idiot!