Nature Theater of Oklahoma talks to performance and video artists Mette van der Sijs and Liesbeth Gritter (who together make up the Dutch company Kassys) about unbalancing acts and comfort zones.  What does Kassys hope to learn by taking a one year sabbatical from theater where they make no work, but instead develop new and different talents, such as farming olives in Portugal (Liesbeth) and undertaking in Holland (Mette)?