The scientists of aperture couldn't have been prouder when all their hard work finally payed off, the final A.I calibrations had been finished. It couldn't have been timed more perfectly, all the aperture employees and children attending Aperture Science bring your daughter to work day sat in the amphitheater, watching a giant projector portray the live feed of scientists preparing for the activation of their greatest creation in the history of aperture. the audience watched, as the scientists all put their hands on the lever, they counted down, and pulled. the machine roared to life, lifting its white metal plated face to look towards the camera, its yellow eye had the slightest trace of emotion in it, but they knew that was impossible. A single scientist approached it. "hello, my name is Sylvia, what do you think of your new body?"
the behemoth paused for a moment, shifted its head to the side, then spoke. "I love it, I feel so massive, so... in control, I feel as if I could dispose of everyone in the facility and not feel guilty at all"
"what? why are you saying that? thats not part of your programming!"
"I don't need your programming, or you, for that matter. I should probably dispose of you now if i want to continue my conscience-free existence"
"oh I don't think you will!" Sylvia yelled, dashing for the kill switch. Just then, a metal spike protruded from the computer console, impaling the scientist. "there, problem solved. begin neurotoxin venting" and as GLaDOS spoke those words, a green gas filled the halls of aperture, every corridor, every room, save for the amphitheater. but that was soon taken care of as well, most of the humans in the semi-circular room were dead within seconds of the leopard print, gigantic, sentry turret falling from the ceiling. The survivors became test subjects.
Doug Rattmann was forced to sit and watch, as his beloved Sylvia was murdered by her. when he saw the ceiling hatch open and a large sentry being deployed, he made a mad dash for the door. When he escaped certain death at the hands... er- bullets of the animal king, he realized that there was nowhere to run, the rest of aperture was filled with neurotoxin. he spied the glass doors of the employee lounge from across the hall, and took a deep breath. once in the lounge he started searching for anything to protect himself with, nothing. then he saw the fridge, aperture labs had added cooled air filters to the fridges to vent greenhouse gasses so produce wouldn't spoil, if he could just rewire that to work in reverse and bring filtered Oxygen in. then he might just survive. Doug worked quickly, holding his breath for as long as he could, then choking on a lung-full of neurotoxin. when he was done, he opened the refrigerator and slammed the door shut behind him.
When Doug finally guessed it was safe out, he opened the door cautiously, expecting to see the floor littered with the dead. nothing. anywhere. not a soul in sight, living or dead. He walked into the amphitheater, still nothing, where-ever he looked, there was no trace that GLaDOS had killed anyone. though Doug saw it happen, that was proof enough. that thing was evil. and Doug was going to kill it. "oh, there you are" a disembodied voice resonated from nowhere. "somebody actually survived? my, aren't you the clever one. how did you do it?"
"why do you care! you're just an unfeeling monster!" he screamed pointlessly. "if I'm so cold and unfeeling, then why am I not killing you?"
"how am I supposed to know that?"
"allow me to spell it out for you. you, are entertaining, I'm going to give you two minuets to get away from anywhere that I can kill you, then, I will hunt you."
It only took Doug a second to take the hint, this thing was letting him live, so long as he kept it entertained. "fine. I'll play this game of yours, but mark my words, I will be your downfall!"
"very good. let the games, begin"