Traditional child book with innovative twist

The first time my DD heard the story of the three little pigs was when I Told it to her from memory. It was the first time in maybe a quarter of a century that I was recalling the details of this story :-).

I surprised myself by remembering most of it. My DD loved it when I said in a gruff voice:

"Little pig, little pig let me in."

And then in a tremulous high pitched voice:

"Not by the hair of my chinny chin chin."

A couple of days later I got a copy (The Three Little pigs, retold by john Duncan, Published by Dalmation Press) of of this story that has crossed many generations- but this version had a surprise ending! The big bad wolf became the big sad wolf and then in the end the big glad wolf!

Now how did this happen? The three little pigs encouraged him him to direct his wonderful talent of huffing and puffing to a more positive channel :-0.