The first time I was given a Swiss Ball to use, I kept falling off too! My current programme uses one, but I'm not actually on it. I kneel on the floor in front of it, clasp my hands together and rest my forearms on top of the Ball, then roll the ball out to the front, keeping my arms on it. My abs get a real workout when I roll it back toward myself, using my abs to control the move. It also works my tricepts.
I found this website that has this exercise on it, because I don't think I described it well enough. Look for the Ball Ab Rollout.
Ball Exercises Anyway, there are tons of things you can do with the Ball, other than having to take your life in your hands by sitting on it.
Love and Warm Hugs,
