If memory serves me right, back in the olden days when a child was slow to learn, they were tested and a diagnosis of "retarded" was rendered by all the professionals and teachers. Then we became "politically correct" and had to invent new words to replace retarded.
It's terribly sad that some of you took this joke personally....It's obvious it wasn't meant to be. I, too, am offended by the use of that word in a derogatory manner but this was not used that way.
I'd like to recommend the book "Michael Vey" by Richard Paul Evans. He wrote it for his son who has tourettes and was being bullied at school....your children will love it. The sequeal comes out in August. I can't wait.