dementia can cause unreasonable fear and paranoia.

My grandmother had alzheimers (yes, a form of dementia, for those who don’t know,) and several times accused me and my dad of conspiring against her. One time I was making pico and was still dicing tomatoes for it, that was all that was in the bowl, when she came over and sampled it, insisting if she didn’t watch, I’d poison her. then she proceeded to insist it was too spicy. /sigh. she thought buttered bread was spicy.