Actually that brings up a good point. I have hyperactive eyes. Well that's what I can think to call it, I don't know if it's a medical classification or whatever. Basically, if something moves, even slightly, my eyes move straight to look at it. If I'm on a train or whatnot my eyes are therefore all over the place so much that it hurts. This also bites me in the ass because if someone turns to face me, I stare at them hard in the face until something else moves. I can't help it, it's my eyes, that's what they do.