I took a spinning class today, at the urging of one of my friends.
Spinning is intense.
My legs hurt. And I consider myself to be in pretty good shape.
The thing is, if I do something that kicks my ass, I'm then immediately launched on a mission to kick the ass-kicker's ass. I wouldn't say spinning really beat me up...I just got jostled around a bit.
Anyway, now I guess I'm a spinner. Good times.