I generally wear eye protection. After seeing a fellow end up with a ruptured case from an M-14 blowing brass particles back into his face, it makes sense. No, it doesn't happen very often, but I value my eyesight more than any other sense. Obviously, if a gun blows up and a chunk of heavy metal comes back at you, you will sustain injuries. But the eye is so easily damaged, it needs the extra protection. You're better off with the eye protection, even though it can feel unnecessary.