Thanks, Metro, for clarifying the ghost thing. I so happy for your ruling on this, so I don't have to adopt or rely on the chance of getting a burglar.
I have yet another question: after my heir maxes his unique career, can he start on another career track if he has no intention of reaching the top? My heir - an angler (Legendary Piscador) - does not get enough opportunities and I think getting a new job might help. He's an adult now, and still needs three more opportunities to be able to marry and move out.