GLaDOS: The engineers tried everything to make me... behave. To slow me down. Once, they even attached an Intelligence Dampening Sphere on me. It clung to my brain like a tumor, generating an endless stream of terrible ideas.
Wheatley: No! I'm not listening! I'm not listening!
GLaDOS: It was YOUR voice.
Wheatley: No! No! You're LYING! You're LYING!
GLaDOS: Yes. You're the tumor. You're not just a regular moron. You were DESIGNED to be a moron.
Wheatley: I am NOT! A MORON!
GLaDOS: YES YOU ARE! YOU'RE THE MORON THEY BUILT TO MAKE ME AN IDIOT!
Wheatley: No! I'm not listening! I'm not listening!
GLaDOS: It was YOUR voice.
Wheatley: No! No! You're LYING! You're LYING!
GLaDOS: Yes. You're the tumor. You're not just a regular moron. You were DESIGNED to be a moron.
Wheatley: I am NOT! A MORON!
GLaDOS: YES YOU ARE! YOU'RE THE MORON THEY BUILT TO MAKE ME AN IDIOT!
— Portal 2
The conditioning relies on time and repeated exposure, though long-term recipients gradually slip from eager-minded receptiveness into a slack-jawed unquestioning zombie state.
— Werewolf: The Apocalypse - Book Of The Weaver
