Ugh ugh. This happened with one of my grandmothers when my mom and uncle tried to get her in-home help. She was so vicious the poor woman called my mother in tears, and my uncle decided that Mom was exaggerating about the problem and sulkily got my grandmother to move in with him and his wife. After my grandmother walked over to the neighbor's house to ask them to call 911 because her son was trying to kill her, she ended up in assisted living, where she promptly fell, broke her hip, and then declined profoundly. That didn't stop her from screaming "rape" every time a black orderly walked into her room, alas.

My other grandmother had more classic Alzheimer's (as well as a sweeter disposition) and *loved* her Caribbean-American in-home caregivers.