So... Rev W Awdry. Wrote the popular children's books collectively titled The Railway Series, which was the basis for the Thomas and Friends TV show.

He made a classic work "Henry the Green Engine" in 1951.

But, in 1972, the story was attacked by the national press for containing the phrase "as black as niggers". To solve the problem, he changed the offending sentence to "as black as soot", which has been used in all subsequent editions of the book.

Err... can't see many people complaining about that one.