Quote Originally Posted by Muirenn View Post
Humph. I have very good balance, but my right knee is unstable.
..

Hasn't anyone ever heard of grabbing onto a rail, and letting go? (Hint: ballet barre).
I put the Bosu close enough to the wall to save myself from disaster.

There are other things you can do with it (pushups, core work, etc), so it's pretty versatile.

Ankle injuries are the worst. They take forever to completely heal.