HORSE TAKES SURPRISE DIP MID-RIDEbr WITH VIDbr By Jaiansh Sharmabr What started as a calm river crossing quickly turned into a splash-filled comedy when one horse decided bath time couldn’t wait.br Mckenzie Mangus, 43, from Costa Rica, was riding her horse Dino Head alongside his brother Guinness when Guinness suddenly dropped into the water and began rolling around in pure joy.br Before she could react, Dino Head followed suit sending Mckenzie into an unplanned soak.br Laughing in the clip, Mckenzie notes there was zero warning and jokes that the number one rule is never to trust Dino Head.br Posted on Instagram one user commented: “Oh, let them have their fun.