I am quite sure that, well other than possibly Australia, this particular brand of highly entertaining nonsense occurs only in the Americas.
Mutton Bustin - children must weigh 80 pounds or less. They are donned with a helmet and a small protective vest then placed on the back of a sheep. All the rides end up the same, the kid in the dirt and the sheep scampering off to join his friends where I am sure they are trying to figure out "what the hell just happened to me?"
No children or sheep were harmed.