We have a relative who has ADHD and when referring to her my DM insists on saying she has 'that ADHD'. Today I challenged her and asked her why she says that because it sounds to me like she is dismissing or not believing the diagnosis. She said she is doing neither and that everyone calls it 'that ADHD'. I disagreed and said i know no one who would say that. I mean you wouldn't say someone has 'that cancer' or 'that arthritis' or whatever. I am trying to clarify my thoughts on this. This isn't a good thing to say is it?