Madam, I will let you know that caring for spirits is part of my job description!

[And he attempts to playfully bop her atop the head with his rod. It's so light a blow just her hair would cushion it completely.]

I can tell what type you are at just a glance, so there's no need to add the educational bits! I was a founding member of the afterlife! I've forgotten more about ghosts than you know!