Hehe, that was on the Back Porch a couple of weeks ago. I know Kody could do it, the question is...could I?! We had a unicycle team in elementary school but I wasn't on it.
Leia
Edited to add: I have occasionally had the suicidal thought of putting roller skates on and letting him tow me on our walks.
Don't do it! I tried that with a dog once (GSP dog). Ended up chipping front teeth, scraping myself up all over the place! What a mess!!! I can't imagine the damage a mini could do if you fell forward.