My FIL has been slowly succumbing to a combination of COPD and congestive heart failure. He smoked like a chimney for 50 years plus other lifestyle factors, so considering he's in his late 80s, he made it pretty far. Docs were talking "a couple years or so" and suddenly today they're discussing palliative care.
He's never been close or caring with his children, and he's a difficult person to be around, but I still don't like when people I know suffer.