True (all of) that. My grandfather has non-Alzheimer's dementia, which mimics Alzheimer's. Truth be told, I'm not sure what the difference is, functionally. Things like excitement and stress play a HUGE role in his behavior. Fighting it, or trying to set right the delusions, doesn't work and, in truth, only make the situation much worse. Managing the situation before problems arise, or else going along with the dementia when it happens, is the only way to deal with it. Simple, but certainly not easy. (Particularly not emotionally.) It's astounding how medication can play into things as well. My grandfather had some of the classic Alzheimer's symptoms: sundowning, fascination with fire, wandering, astounding grandiosity and mood swings. He was, in short, uncontrollable. When his medication was reviewed, and coordinated and streamlined, a lot of the behaviors were greatly diminished. Just something to think about.