The Vicar of Nibbleswicke tells the story of a man called Reverend Robert Lee, who takes the prestigious title of the vicar of Nibbleswicke. The trouble is, he is suffering from an incredibly embarrassing and exceedingly rare condition called Back-to-Front Dyslexia, which essentially causes Lee - as well as all of its sufferers - to say the most vital word of the sentence backwards (i.e. instead of saying "boy," he would say "yob," which is British slang for a naughty youth.)
But the parishioners in his church don't find his condition funny. This especially includes the church's most generous and perhaps the most kind parishioner called Miss Arabella Prewt, who detests being called "Mrs. Twerp." The trouble is, though, that he doesn't know that he is doing this and doesn't truly understand why his parishioners are so mad.
Surprisingly, a cure for the disease is found: the good reverend Lee must walk backwards for the rest of his life, which works for him, thus calming his parishioners nerves.