re: Ghostbusters 1 or 2?

Ray: Symmetrical book stacking. Just like the Philadelphia mass turbulence of 1947.
Peter: You're right, no human being would stack books like this.
The entire bit of skepticism from Peter during the library scene is awesome.

Dr. Peter Venkman: Alice, I'm going to ask you a couple of standard questions, okay? Have you or any of your family been diagnosed schizophrenic? Mentally incompetant?
Librarian Alice: My uncle thought he was Saint Jerome.
Dr. Peter Venkman: I'd call that a big yes. Uh, are you habitually using drugs? Stimulants? Alcohol?
Librarian Alice: No.
Dr. Peter Venkman: No, no. Just asking. Are you, Alice, menstruating right now?
Library Administrator: What has that got to do with it?
Dr. Peter Venkman: Back off, man. I'm a scientist.