I have been throwing circles for about 4 years and have seen my share of crazy shots. One of the best was probably one of my first times discing, I was throwing at Kimball Pines, aka "Pinball Pines" near Battle Creek, MI. My buddy's friend who had been playing for years was showing me how to throw a roller because thats was my only option after shanking my drive. After some good instruction I proceeded to throw an okay roller but then it started veering hard right, rolled down a hill to the right and then went all the way straight across the parking lot headed for my car and suddenly did a 180 turn and took the same straight line back at least 50' to the fairway and landed gently a few feet inbounds. Definitely one of the crazier shots I have seen. The seasoned vet said it was one of the craziest shots he'd seen in over ten years of shooting.