Kids knocking on David Zald's door tonight looking for a treat are in for a trick. Zald, a psychology professor at Vanderbilt University, decorates his house with skeletons and creepy fog. As children walk through his haunted house, Zald can see fear in their faces.
"They want the candy, but they're not sure they want to come up," Zald said.
Who would blame them? Especially when he's dressed in white polyester as Disco Stu from the "The Simpsons."
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