I really don't have much advice for you. I know it's hard to deal with someone who is difficult let alone one that has dementia that magnifies the issue. Does he take any medication? My gma was on Namenda and it helped with her emotional issues tremendously - she wasn't mean or anything like that, just really weepy all the time. If he is not on meds perhaps you or your mother can ask about one that can help stabilize his moods?
Moderator-Allergies/Asthma and Alzheimer's, Co-moderator-UC
Diagnosed Left sided UC in '92 - meds: 6mp, Colazal, Remicade and Bentyl*Unable to tolerate ALL mesalamines*, in '11 diagnosed with IBS, Diverticulosis, Fibromylagia..I also have Sacroiilitis, Scoliosis, Raynauds, OA, PA, Rosacea, Psoriasis, Dry Eye and allergies controlled by Zyrtec and Singular