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* AccidentalInnuendo: H.R.'s explanation for why the witch tried to capture Jimmy in the first episode: "You must have something she wants, and she can be pretty grabby."
* HarsherInHindsight: After being in such a drug-associated series, Jack Wild became a serious alcoholic which destroyed his career and contributed to his death at 53.
* LesYay: Not least, perhaps, between Witchiepoo and [[WesternAnimation/LooneyTunes Witch Hazel]] (Cass Elliot) in the movie.
* LoveToHate: Like most Krofft series, the villain Witchipoo and her QuirkyMinibossSquad of assistants is the real draw of the series (as a BigHam more than anything else), with the nominal heroes only mildly of interest.
* PeripheryDemographic: Guess which one. [[spoiler:That's right. Stoners.]]
* ThisIsYourPremiseOnDrugs: It's just a question of which one, really.
* ViewerSpeciesConfusion: [[https://en.wikipedia.org/wiki/H.R._Pufnstuf#Others Judging from the Wikipedia page]], some people mistook the Ants for "crustaceans". More bizarrely, they class them as a separate species to the Hippie Ants.
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