"...everyone has special needs, like Father, who has to carry a little packet of artificial sweetening tablets around with him to put in his coffee to stop him from getting fat, or Mrs. Peters, who wears a beige-colored hearing aid, or Siobhan, who has glasses so thick that they give you a headache if you borrow them, and none of these people are Special Needs, even if they have special needs.
But Siobhan said we have to use those words because people used to call children like the children at school spaz and crip and mong, which were nasty words. But that is stupid too because sometimes the children from the school down the road see us in the street when we're getting off the bus and they shout, "Special Needs! Special Needs!""
---from The Curious Incident of the Dog in the Night-Time, by Mark Haddon