Here's one of my favorites from court recently...
Q: What do you think of your wife's diagnosis?
A: You know, she's 60, so she's kind of done anyways.
Q: But do you know what her diagnosis is?
A: She's just too old.
Q: The doctors said she has dementia, does she?
A: Well, she don't cook me dinner no more.
There you have it, when a woman stops cooking her husband dinner, it must mean she has dementia.