Okay, I'm just flipping through these now, because Gusto is finally cleared to start doing some more active stuff now, and I kind of want to teach him a foot stall for no valid reason. He already hops up into a piggy back position (front feet on my shoulders, back feet generally shoved into the wasteband of my jeans at the small of my back), because that's where he likes to hang out.
And anyway, I just had to say once again how much I love Art. Almost too much. He's like a little brown version of Gusto, but seems like a little less of a complete moron. I love your idea of using the board to train it - I think this may be my afternoon activity! Just need to figure out how to make myself a board. Bathmat, maybe?