“Are you telling this jury that you came in here yesterday, as a Ph.D. and the chairman of a department, and made a little mistake in an opinion you’ve been preparing for the last year and a half?” Facher had said. “You’re telling us, as a professor of geology, that you forgot to take into account porosity? Didn’t you lecture in front of this jury for an hour about making these calculations? Today is true and yesterday was not? That is what you want this jury to believe?”

Jonathan Harr, A Civil Action, loc. 1932