You get very different reactions from DS kids than you get with so called normal kids. For example:
Mom to "normal" kid: It's your turn to do the dishes
Normal Kid: I did them last week. Anyway I have too much homework to finish and my softball game is starting in four hours. And I think it's Nancy's turn.
Mom to kid with Down Syndrome: It's your turn to do the dishes
Kid with Down Syndrome: YAY!