Stress such as you experience in exercise is what creates builds focus, strength, and the capability for expanded expression; and the same is true for any kind of performance.
"Stuffed and Unstrung" started as a workshop, actually, classes within our company. We found that our puppeteers were not ad libbing as well as traditionally, Jim Henson Company puppeteers have. We're sort of famous for going off script a little bit and ad libbing.