To the Man With a Hammer Everything Looks Like a Nail
http://charleshurwitz.wordpress.com/2009/10/19/to-the-man-with-a-hammer-everything-looks-like-a-nail-mark-twain/

Hurwitz, Charles
Freelance Technical Writing in Israel
2009

Abstract:

An engineer at a company once called me and asked me how much it would cost to edit a Service Manual that he had written for a medical device. I asked him to send it to me so that I could give him a quote. When I received it I saw to my amazement and horror that he had written a 200 page manual (including many graphics) in Excel. When I asked him why he didn't use Word, he replied 'I'm an engineer I know how to use Excel, not Word.'