But the pressure alone would crush me! If I wore glass on my head the glass would also smash and probably go in my eyes. If the glass was in my eyes and the doctors couldn't operate to take it out that means I'd see a thousand of everything from the reflections in the glass. If that happened, next time I'm driving and I see a roundabout, I'll actually see 1000 of them and attempt to go around each and every one, which is dangerous on it's own. God forbid I ever have to be part of a high speed police chase!