
While reading the Marty Nemeier book, ZAG, I came across a quote that reminded me of my zany advertising teacher from FH-Trier in Germany – Hermann Vaske. The quotation was "...CEOs say they know half of their advertising money is wasted – they just don't know which half..." and Mr. Vaske used that quotation in one of his films, "The A-Z of Separating People from Their Money."
He's worth checking out: http://www.hermannvaske.com.