Balancing Act

So yesterday at the gym I took a new class. It was called Ball Fitness, or something like that. I figured it was laying around on the giant ball and doing sit ups. Boy was I wrong. There was a ball alright, but only half of one. The object was to stand on the ball and balance yourself while we did things like squats, leg lifts and push ups. Well, I spent the entire hour just focusing on trying not to fall off and kill myself. To make matter worse, the class was about 20 women and 1 guy. And you know the guy.. Older, really loud and over the top. He was positioned right behind me. Well, he couldn't stay on the ball to save his life. But when he fell off, he made a big dramatic move that I caught out of the corner of my eye which then would mess me up. I almost said something, but figured I just wouldn't go there. Anyway, I feel pretty achy today, because I concentrated so hard on not killing myself, I think I might have pulled a muscle.