K.O.D.S.
You got downs syndrome... but only kind-of. You're still a mess, but at least you're not completely useless.
My mom has K. O. D. S. She can't remember my birthday, but she can remember that I hate carrots.
My dog has K. O. D. S. He can't sit, but he can bark at the vacuum cleaner.
My teacher has K. O. D. S. She can't read, but she can write 'I love you' on the board every day.