hair dressers and profs have in common a de-stressed life; most v least stressful : military v academia
http://www.forbes.com/sites/susanadams/2013/01/03/the-most-stressful-jobs-of-2013/
http://www.forbes.com/sites/susanadams/2013/01/03/the-least-stressful-jobs-of-2013/
Best to comment on twitter via @markgerstein. Only use this space for comments that are untweetable!