WATCH: Toddler teaches family dog how to hula-hoop

They say you can't teach an old dog new tricks, but that didn't stop determined this determined toddler from giving it her best shot with a hula-hoop. Little Sierra, a dab-hand at the old hula herself, shows her giant furry friend how it's done, with some of the sweetest positive reinforcement we've ever heard. In her own words: "It's fun! It's REALLY fun!" https://www.youtube.com/watch?v=oEdRUyN6Kfo#t=22