Without being specific, there have been occasions when someone died and I felt like things were better because of their passing. For a few, I’d like to dance on their grave like that scene in the Scrouge musical (“Thank you very much, that’s the nicest thing that anyone’s ever done for me.”) For others, it’s simply relief that I don’t have to deal with their problems any more. This would include friends and relatives with mental illness or a wasting disease.
But I feel ashamed of this attitude. Certainly, part of “love your enemies” is to cherish their life. “Love does not rejoice in evil.” And as a humanist, I place a high value on sentient life.