I have been considering using a helmet mirror and understand that while "Fredish" safety never hurts. Or can it? by which I mean is risk of eye injury made worse in a fall by a rigid metal or plastic rod and sharp? mirror near ones face? I realize that cars can injure much more seriously and the low probability of falling in such a way as to cause eye injury but I remain concerned about a mirror mount that could polk me in the eye. I'd appreciate your thoughts on this.