This is an anti-girl statement, to go along with Becca Foster's theme:
Lindsay Weir: Dad, give me one good reason why there can't be a woman president.
Harold Weir: It's called three irrational days per month. Now, I would have no issue with the other twenty seven, but we're talking about the atomic bomb here.
Thank you, Freaks and Geeks. I really hate those irrational days.