Wow, that's really interesting... I have to wonder why it did that. Then lens looked like water, perhaps? Reminds me a little of a viral video from a couple of years ago with a photographer filming fox cubs... and one of them just walked over and climbed on him.
That sounds great, though equally difficult to photograph when you're alone 8-).
The only thing I can think of is that my camera was the warmest thing around, and they like that.