Back Off, Man. I’m A Scientist

Dr. Peter Venkman: 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’s has that got to do with it?
Dr. Peter Venkman: Back off, man. I’m a scientist.