My mother is 83 years old, and has dementia. She often regresses into a childlike state, where she demands to be pampered. She asks for things like cookies and candy, which I cannot give her, because she also has type 2 diabetes. I have tried giving her sugar free cookies and candy, but they only seem to cause problems. If my mother does not get her way, she will throw a temper tantrum, and threaten to walk out the front door (which she has done before) How do I deal with this?