I think one of the interesting things about the book is that, having read it, you can pick it up and read any part you like. One day I just sat down and read the story of The Man Who Was Too Lazy To Fail, just because I felt like it.
My wife found me a hardcover copy of TEFL when we got engaged. And inscribed on the watch she gave me as a wedding gift is "TEFL." Which, when you think of it, is stunningly appropriate.
There are hints of that, to be sure, but the main thrust (ahem) seems to be his fixation with redheads.
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...Trot and Cap'n Bill were free from anxiety and care. Button-Bright never worried about anything. The Scarecrow, not being able to sleep, looked out of the window and tried to count the stars.