Scaring sims to death probably won't happen, unless it's an indirect attempt "the sim must have a very low mood". Never ever have sims themselves killed another, so I think Devs wouldn't consider of adding that in :D
- Hunger, how about feeding off their fears ? Like scaring them first, then feeding off their fright/scare :open_mouth: :worried:
Oh, you reminded me of an idea that I had. Maybe with some kind of expansion release, they could interest a hidden/sub-world called "Nether". Entering you it through the world screen, you can customize in there and do what ever you want as a ghost. Only Ghosts are exclusive to that neigbhorhood. In the board nightlight, sim can cross the overworld-nether (will appear near their grave when from/to crossing). If the day arrives when in overworld, the ghost will then be force to return to the afterlife. So yeah :)
Adding things there