Have you ever experienced the death of an adversarial or difficult person?

Somewhat self-explanatory, but this is a hard topic to find info on, save for some religious websites and Proverbs. It seems to be quite taboo.

This person can be anyone: a workplace “enemy” who tried to sabotage your career, a horrible boss, an abusive family member or ex, a bully who made your life Hell. However you want to define “adversary” it is up you.

How did you feel when this person passed away? Did you experience complex or conflicted emotions? Were you happy? Guilty? Sad? Indifferent?

Look forward to your replies.