Snodderly - my mother had a stroke at 90 and made a full recovery,living another very active 3 years. But our parents at that age are frail, and every day is a blessing. The clarity of mind is a great blessing.
My lovely father developed Alzheimers and died many years ago. His death was mercifully quick, but to all of you with parents - make the most of it, because you won't always have them - even when they are iritating. I miss mine so much, although I am glad they were spared the pain of seeing their much loved son-in-law behave like this.
My MIL admits she wasn't a perfect mother - but in my h's case my late FIL was the real problem. MIL was a lot younger and a pattern of bullying of her and the kids was established early in the marriage. It was a lot harder for women then to leave, and also she did love him . . . But I know she regrets it now. Sadly they aren't a family that talk about anything that matters.