Long shadows time.  Time for me to go home I think. After this my camera died with flat batteries, and as I tried to nurse it back to life so that it would retract its lens properly I managed to slip on the same patch of mud that I twisted my ankle on earlier, and started moving rapidly towards the water.  I managed to stay upright enough to work out what to do, and ended up resting on both feet and my right elbow dug into the soft mud, the camera safe in my right hand; I pushed myself up with the tips of my left fingers so that I wasn't so dirty that I couldn't get the lens cap on the camera.  Neither the satchel-type bag slung over my shoulder nor my arse got muddy, so I managed to walk home with little embarrassment.