Dad is 6 yrs. post stroke. He was fine for 3 months then spiraled into deep depression. We tried all kinds of pills, counseling, but nothing. Now he is at a new stage of combative meanness. He doesn't care a hoot about his hygiene, he believes my mom is trying to poison his food, he questions everything and believes nothing, We need him to get to dr's appts. but he refuses, he's hiding pills and saying he took them, he has been physical once w/ mom, otherwise he's just killing her w/ irrational, terrible words.