It turns out other professions do it too... who'd have guessed?!
Brad DeLong has a great list of "Twelve Things Economists Need to Remember to Be Helpful Journalistic Sources"
Number four is the best:
4. Never say, "on the one hand, on the other hand." Always say, "I think X because I believe Y is most important; other economists will tell you Z because they think Q is most important. They're probably wrong because of R."
I'm going to remember that.... it works just as well in consulting.