I stopped to take a photograph of the beech tree in leaf and looked along the lane to see where Shane was. There was no sign of him. Then I heard the heavy breathing from the other side of the wall and fence. He had somehow got into the field with the cows and new calves. NO amount of looking could find his route in, so in the end I had to pull the fence up at the bottom edge where there was a tiny gap and drag him through on his side.
Looking suitably chastened after this experience!