Thank you for an exhilarating class! One comment though, you need not be offended by yawning. It is a natural and healthy physiological reaction to exercise (i.e. need for more oxygen or sign of relaxation, both of which mean your work-out is working!).
Great class! Goes to my favorite list :) The description did not mention that you'd use a small ball, though, so I found myself improvising at the end since I had none, haha. Meredith, you're quickly becoming one of my favorite teachers!