You never know when your going to need it. Heres a clip of me getting hit by another quad. You would think my GF would have warned the guy we were coming up the hill. Or maybe a chick with a camera standing there would be a clue for the other guy? Not to mention my buddy had just came up in front of me. Oh well. Nobody was hurt.
YouTube - Having fun on the Tree Shoots at Sand Lake til I got T-