I came into the office at one point on Wednesday and saw this. Not only is Nina very literally hanging by a single toenail here, but she did it for long enough that I was able to take at least 30 pictures of her doing so before I stopped, and she was still hanging when I stopped taking pictures. So I don't know how long this went on, but I figure for at least five minutes.
She didn't seem uncomfortable. The square-cube law suggests that there's no real reason to think she would be, either (which is why I didn't try to "free" her). Though it's very different from our ordinary understanding of how the world works, as creatures that weigh kerjillions of times more than Nina does.
As time goes by, it's getting harder and harder to come up with pictures of Nina doing something new, that I haven't already posted to the blog, but we're clearly not out of odd photo opportunities yet.