As a teacher, one can be in a position of needing extra time to create art. I was taking a grad. class and during the lecture and discussion sessions I was allowed to work. Using pen and ink on paper, this medium could dry fast and required little space to perform. While working on Basket Weaver, I was near the end when a drop of ink landed on the area atop the hand/hip held basket. Now I had to turn this spot into a dark cloth hanging from the rim of the frame. There's no erasing with pen and ink.