Now for something serious.

yeah,, my mother in law (who lives with us) suffers from it

thank goodness hers is a mild case that presents itself in a benign way, she doesnt get hostile or violent
but it is still a sad way to be
There will come a day unfortunately that she may. A very good friend of our family was a real gentle man and wouldn't hurt a flee. He landed up with it and he became so violent they had to restrain him. Thankfully he passed away shortly after that.