 The reason none of Nicholas Rhea (qv)s original stories were  adapted for this series was because some of the real Greengrasss  activities were rather bizarre, and because one of his reminiscences  was a near duplication of a James Herriot (qv) story (the one  about the dog who was put to sleep because he was thought to have  been attacking sheep, only to be proven innocent after the fact when  the real culprit was shot to death somewhat later, after he had  died).