And it ain't mine, folks. I'm going to stand here quietly in the background, and direct you to this wonderful blog post, written by someone with autism, about someone with autism.
Take a glimpse inside their world. Walk a mile, or even just a few steps in their shoes. Listen to them squeak. Feel how they pinch your feet. Try to explain that to someone who's sure you're just being difficult, who talks about you like you're invisible on a regular basis.
Read the article, please. Read it, and remember it.