Our new doghouse is so fancy, even Smokey himself will not step inside! Read the sentence.

Why does the author use the word “himself” after Smokey?

to change the meaning of the sentence
to give emphasis to the meaning of the sentence
to give humor to the meaning of the sentence
to change the way the sentence is read

London includes a quote about john thornton as he is observing hal attempt to motivate the exhausted dogs "it was idle, he knew, to get between a fool and his folly". if the word "idle" is defined as "of no real worth, importance, or significance", what does this statement mean with regard to hal? who is the fool? what is hal's folly? why would john thornton think it of no real worth or useless to intervene?