I was in bed last night, and there was just enough light that my vision appeared grainy, causing me to remember that this used to freak me out as a kid. I think at the time (when I was four or five) I was worried it was a sign of deteriorating vision. I remember just staring, hoping that if I did it long enough my vision would clear up, but as anyone who has fixed their vision in one spot for long enough knows, that only amplifies aberrations in sight (blind spots that are normally content-aware-filled by the brain become prominent, etc). Eventually, it would look as though the grain was expanding and contracting which reminded me of mouths, saying "Obidobidobidobido." So as a kid, the term I assigned to film grain or digital noise in images was "Obidoes" [oh-bee-doughs]. I had also heard the pupil was a hole in the eye, giving me the impression that there was no biological lens of any kind covering the dark spot in the center of our irises. I now know that this is not only untrue, but it would also interfere with our ability to focus our vision. But around the same age as I'd created the Obidoes, I used to worry that something would… fall… into my eyes. If you have any odd thoughts or misconceptions from your childhood, post 'em here. I'm curious to learn just how dumb I was relative to other children.