I don’t watch much television these days, but there’s this show I used to like called “The Ghost Whisperer.”
Some chick with big tits sees ghosts, talks to them, resolves their issues, and convinces them to head off into the light so they can move on.
If the producers were really serious about getting ghosts to move on, they could have gone with Gilbert Gottfried, though.
Anybody who talks to him for more than a minute, ghost or not, would be running for the light regardless of how fucked up their shit was or any leftover business here on earth.