About six years ago I was cycling along a bridleway in some woods near Sevenoaks. The surface was very wet and muddy and I lost traction, ground to a halt and fell over on my right side. I was still clipped in to the pedals and in a perfect riding position, with a tree stump poking up through the centre of the frame. I couldn't unclip my right foot because I was laying on it and couldn't move the frame anywhere due to the tree stump. I unclipped my left foot but could no nothing with it so my leg was flailing around helplessly in the air. I can't remember now exactly how I got myself back up but it took a little while as I recall. Luckily there were no spectators to this pathetic spectacle.