Looking for all the world like a snake waiting to pounce on its prey, Class 60 diesel no. 60092 winds its way across the flyover at Bishton, Gwent. The train was 6B13, the Robeston Sidings to Westerleigh Murco loaded petroleum tanks. The "prey" is a Class 170 'Turbostar' DMU of Cross Country Trains. This was 1M60, a service from Cardiff Central to Derby.