I believe this video is a practice video for the "Darwin Awards". This video is of a young man jumping on the back of, and riding a captured white rhino. The two men are sneaking into where ever this rhino is being kept and then after their feat is accomplished the dumb and dumber pair run away.

Professional hunter Jofie Lamprecht said, “a rhino can turn on a dime, outrun any human and flip a truck with just a flick of his head. This is not an animal to be taken lightly.” In other words, the guy is lucky the rhino didn’t squash him into pulp.
Source: Outdoor Life Magazine & Gayne C. Young