Maybe not new to many of us, but something that happened to me:
I sent my actobat sim to the park to perform for tips. After few minutes she was interrupted by a townie dying. To express my dislike with random deaths interrupting my efforts, I assured that I have death flower, and let the acrobat sim rant about death just as Grim vanished. Well, he came back right away, did all like my sim was dying, turned her into green-ish ghost, and then back to living sim saying something about not doing that again. My sim was left alive with 12hr -5 moodlet and the death flower still in bag.
Quite funny.