I had a pretty bad case of tendinitis once, that basically made my thumb useless since using it would cause extreme pain. That test seems really good. I could use a computer keyboard without any issue, but putting a belt on or pouring water was impossible.
I had a swollen elbow a short while ago, and the amount of things I've never thought about that were affected by reduced elbow join mobility and an inability to put pressure on the elbow was disturbing.
