Today is the day of the final exam in my course on critical thinking and scientific misconceptions. 
I thought my students would get a kick out of this photo.
I'm certain that all regular Sandwalk readers know what I'm talking about but just in case there's any new readers who don't get it, here's a short clip from the movie.1
1. Note to IDiots and other creationists ... Gandalf is a fictional character, he doesn't exist. There are many fictional characters who appear to be powerful and menacing but that's only in stories and myths.
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