Quote from Norm in The Ghost and Mrs. Lebec
Lilith: What a terrible experience, Carla. Um, what do you suppose triggered this bizarre apparition? Carla: Well, it's obvious, isn't it? Eddie's spirit does not want me to be on that date. He's come back from beyond the grave to tell me not to go out with Darryl Mead. Frasier: Oh, Carla, you can't be serious. Ghouls do not rise from their resting place just to ruin your dating life. Norm: Oh, Vera did.