I can't imagine crippling hand pain, either. I have a strange hand issue when I put on gloves/mittens. Not just really tight ones, either. My hands just ache and feel like they are being squeezed. I solved this by buying bigger cycling gloves, but I've been buying different gloves/mittens for x country skiing and it just makes no sense. Same brand, same size, different style, and the difference is startling. The thing is, the gloves fit, are even roomy, but I still feel the pain.
I went to boot camp this morning, another class where we did stations. One was to stand on a Bosu ball and do kettle ball swings for a minute. This was the first time I've ever managed to stand on a Bosu, and the challenge of the kettle ball swings made me mighty shaky, but I did it. Then, we had to do a second set! We also did jump over the Bosy, squat things, as well as other nasty stuff.
I was a gym class reject, too.