Definitely not the picture I had in mind! 37601 Class 37-'Fifty' leads the 1Q13 10:02 Didcot to Didcot via Bristol Network Rail radio survey train past Knighton on 29 September 2011. 37611 is on the rear. I had carefully chosen this viewpoint to show the autumnal teasels and brambles in the foreground. What I had not planned for was the 1L50 10:31 Cheltenham to Paddington HST putting in an appearance as the background!