The movie "Rainman" is very good. My son attends school with some children afflicted with various forms of Autism and it requires parents with endless patience and manners in order to work with the child.
My son prefers to read tractor manuals, Haybine manuals, the GMC Turbodiesel manual, and my wife's chemistry periodicals. He loves the molecule chains.
One cannot be too thin skinned when you've got little ones with disabilities. If Rush's comment bothers such people, they are going to feel like they live to be 300 years old, uphill.