Whose leg is it anyway?

While Calif. Gov. Arnold Schwarzenegger's tweet that he'd met with Sen. Barbara Boxer (D) is interesting enough, he included a TwitPic that is maybe more intriguing.

Schwarzenegger tweeted Tuesday:
http://twitpic.com/5iew4 - Just met with Sen Boxer. Working hard to get CA the right to make the cuts we need.


More importantly would be the extra leg in the picture, making us wonder whose unfortunate knee is in the brace.