With you on the euthanasia thing. Sounds like a horrible end for them both, quite lacking in dignity.
Tangentially, there was a study done by an Italian chap (begins with Z - Zanetti?) which looked at the placebo response for pain relief, but used people who had dementia. He found that dementia patients needed significantly more pain relief (like x5) to relieve the pain, compared to patients workout dementia. The conclusion was that a big chunk of pain relief is placebo. I sort of take a little issue with the conclusions, but I wonder how our healthcare takes this into account. I assume, not at all. "That's too much, I'm gong to get sued" kind of thing.