BORED WHO ELSE IS BORED?

Mounds in an otherwise flat terrain may show archaeologists a potential digging site. what kind of complement is indicated by the bolded word? object complement indirect object direct object predicate nominative

Which statement best paraphrases these sentences from the text

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?