Janine Melnitz: I want you to know I'm only doing this because of you, and not for C... C... C...
Dr. Egon Spengler: Christmas.
Janine Melnitz: Bah humbug!
Slimer: Yah! Humbug!
Peter Venkman: [Has Scrooge looking through a viewmaster] Don't touch the magic window or we'll fall.
Winston Zeddemore: [picks up a book] A Christmas Humbug by... Ebenezer Scrooge? But that's the guy we just saved.
Dr. Raymond Stantz: But that's impossible! Unless... we've gone back in time!
Winston Zeddemore: Egon! No, Wait!
Dr. Raymond Stantz: Those three ghosts, Egon! Are they?
Dr. Egon Spengler: Of course. I just finished now.
Peter Venkman: Egon, you sure you can't let those three loose without letting them all out?
Dr. Egon Spengler: Correct, but... why would we want to?
Dr. Raymond Stantz: Oh, no. I can't believe it. We really done it this time.
Dr. Egon Spengler: Why, what, what did we do?
Dr. Raymond Stantz: We just killed Christmas, Egon. Christmas is gone. Forever.