Obviously this is a crazy idea and noone should do it, but if a prediction market let you bet on what day someone would die, someone could insider trade the market by placing a big bet on the day they go and assassinate them. People could place bets on random days for people they don’t like to push up the value of the winning bets.
There was a guy from the Cypherpunks community who set such a thing up (in the 90s/00s). IIRC, he was jailed after the courts rejected his defence that he was merely running an innocent betting site.
It’s so dumb he was jailed. Like he did nothing wrong
Tell that to the judge