And that's true in theology too, isn't it? I suspect that is the reason you don't find a fully developed theology of satan in the scripture...and why it is so easy to see "a demon behind every bush" if you aren't careful.
A good illustration of this is the movie Fantasia from Disney. The part where good finally triumphs at the end is boring! But the preceding Night on Bald Mountain is fascinating...we need the redeeming power of the Holy Spirit even to see evil as repulsive.