This woman had the idea to use a skeleton to train a horse to carry a human. Based on the fact that the skeleton starts out upright, and ends completely bent over and hanging off the horse, I think she made the right decision to do a rest run (Just kidding)
I'm sure this skeleton got bent out of shape simply because it lacks the ability to actually hold on, but I had a good chuckle watching this.
Hopefully the woman won't be saying "bones are definitely broken" when an actual person rides the horse!