According to CNNMoney.com. Number one in their survey of satisfying job switches is from lawyer to yoga teacher/studio owner.
Witness Susan Rubin at Seasonal Yoga, Armonk, NY.
http://www.seasonalyoga.com/
As covered at http://money.cnn.com/galleries/2007/moneymag/0703/gallery.bestjobs_profiles.moneymag/