From John Seely Brown and Paul Duguid, The Social Life of Information:

There's a story told of a typesetter working on a Greek text at the Oxford University Press who announced he'd found a mistake in the text. As the typesetter couldn't read Greek, his colleagues and then his superiors dismissed his claim. But the man insisted. So finally an editor came down to the compositing room. At first, she, too, dismissed the idea, but checking more closely, she found there was an error. Asked how he knew, the typesetter said he had been hand picking letters for Greek texts for most of his professional life and was sure that he'd never made the physical move to pick the two letters in that order before.

Anybody seen other citations for this story, or similar ones?