Yeah, good point. I think it's not just Hollywood though, it's in the way "tricksters" are explained to children (I want to say nowadays particularly). I mean, when I think trickster I think... imp, or gremlin, and even those creatures have become somewhat sanitized, I think - they'll play tricks on you but they're not really mean, you just have to find a way to appease them. Just like fairies = happy sparkly magic time, not "oh God help us all" time. I don't know, this is just a theory on my part.