Harpgirl, in the Mel Brooks movie "Young Frankenstein," Igor (pronounced Eye-gore, played by Marty Feldman) goes out on the doctor's orders to get a brain from the Brain Repository. In one of the funniest scenes in the movie, he drops the correct brain and gets one with a sign under it that says (DO NOT USE THIS BRAIN--Abnormal). Later, when the creature turns out to be dangerous, Dr. Frankenstein (Gene Wilder) asks him if he brought back the right brain; Igor has to admit he didn't.
"Whose brain is it, then?" demands the doctor.
"Uh, Abby somebody's."
"Abby sombedy's?"
"Yes, Abby Normal's."
"You mean I put an abnormal brain in a nine-foot, three hundred pound..." the doctor shrieks and begins to strangle Igor...