Not long ago, I found myself having a Twitter conversation with a rotating skull. Its picture shows a skull turning around and around against a black background. Its handle is simply @rotatingskull. Its self-description is cryptic: “I am a skull that rotates.” When I asked it how I might make my own head rotate in this attractive manner—something I have always longed to do, as it would be a visual description of my state of mind in the mornings before caffeine—it told me I should view *The Exorcist* backwards while sprinkling holy water. Then it sent me a YouTube of itself in younger days, when it still had a skeleton, featuring as the prima ballerina—or ballerino—in the 1929 Disney Silly Symphony, *The Skeleton Dance*.