I do sit-ups on a ball like that at the gym. Once, it slid out from under me as I started to get up. Unlike Bud, I ended up sitting on the floor. Since then, I’ve been a lot more careful.
I do sit-ups on a ball like that at the gym. Once, it slid out from under me as I started to get up. Unlike Bud, I ended up sitting on the floor. Since then, I’ve been a lot more careful.