It's only a couple seconds long, but above you get a glimpse of the ongoing Frau Blücher joke from Young Frankenstein. I had always seen it as just a funny joke in that quirky Cloris Leachman and Mel Brooks way, but a story from the San Jose Mercury News has added background to the whole character who brings fear to gentle horses everywhere.
Gene Wilder recently told the publication that the film is his favorite, that it is the "most perfectly realized," and described the creation of Frau Blücher. "When I was writing the first draft, I said, 'I wonder if anybody would get it when someone said "Frau Blücher" and the horses neigh.' Mel (Brooks) said, 'Keep it in.' Well, the audience loved it in the previews. Actually, I chose the name because I wanted an authentic German name. I took out some of the books I had of the letters to and from Sigmund Freud. I saw someone named Blücher had written to him, and I said well that's the name. Later on, I heard from about two or three sources, who said Blücher refers to a horse going to a factory and being turned to glue. I just thought it was a funny name."
So, now you know why those scared horses neigh. Sure, Frau Blücher is a scary old woman, but her name also brings thoughts of factories and glue.
[via Film Stew]