His verbal abuse of my sister frightens us all. After a rage, he will sometimes admit he knows he has "a problem"/ his sister had Alzheimers + died 2 yrs ago/ his short term memory causes him to repeat himself/ both my sister + he are highly educated, retired professionals; consequently, he becomes belligerent if anyone even hints he might be doing anything wrong/my sister does not know what to do, except live with it/her family fears the abuse may turn physical, as he has shoved her in the past/he often threatens divorce/he will not see a dr. regarding any tests for Alzheimers, etc.