What do you think happened? Yeah, I left the apartment for half an hour- without you noticing- just so I could find a completely different Pokemon to replace Faraday with, for absolutely no reason. How does that make any goddamn sense?

[Venkman's self-righteous fury dies down quickly once Egon gets the picture, however. He peers up at Faraday curiously when she approaches the couch- he'd try to make room for her, but he's not totally sure how a tree ghost could sit on a couch.

Sigourney continues to not care in the slightest.]

... Egon, did you ever read up how Faraday was supposed to evolve?