We call it "elephant games" after an article I read in an old dog sports magazine...about teaching this to puppies...it's reminiscent of the old circus elephants on their circular "perches".
Here's the first video...(turn your speakers down if you don't want to hear annoying Inara whining)...but if you're a training nerd, you'll want to hear it...to see how frustrated she gets by the smallest things. Sorry I chopped her head off...hard to tell when setting up the camera yourself!
She *has* done this before, on numerous occasions...but it's always like it's a new thing for her.
http://www.youtube.com/watch?v=luUQL4rfZbE