"When the crow flies away, a pear falls off"...WHAT???
This Korean expression refers to the tendency of people to see patterns where they may not exist--a false correlation. Or, to use a more technical (and perhaps medical term) it's "apophenia." I just found this out in Ella Frances Sander's delightful new small book on on common expressions in different languages called The Illustrated Book of Sayings. Page 12. If you love words, go buy it, download it, or take it out of
your local library.
Good writing skills are a cornerstone of success in the academic world, and they are also a major plus in later life.