i think it would be funny if people occasionally arose from the dead. like if that was a real-life one-in-a-million but well-documented Thing That Sometimes Happens, and the entire legal system around death (laws on inheritance & marriage & murder etc) had to include caveats for the unlikely-but-scientifically-possible event that the dead person in question might spontaneously self-resurrect, even years or decades after death. it would raise so many inconvenient and absurd possibilities