Warning: Long, long, long post. If you don't wanna read through a friggin' wall of text, skip, skip, skip ahead.
I've a.. few.. amusing quotes from the game Portal. You're in a test facility testing the portal gun, while the AI supervising your tests is constantly trying to kill you. It gets more obvious/creepy/almost downright scary the closer it gets to the end. I should probably add that GLADOS is the only one who talks throughout the whole game anyways. Unless you also count those creepy turrets that sound like small children.
"The Enrichment Center promises to always provide safe testing environments. In dangerous testing environments, the Enrichment Center promises to always provide useful advice. For instance, the floor here will kill you. Try to avoid it." - GLADOS, the AI.
"As part of a required test protocol, our previous statement suggesting that we would not monitor the test chamber was an outright fabrication. As part of another required test protocol, we will stop enhancing the truth in 3... 2... *static*" -GLADOS.
"As part of a previously mentioned required test protocol, we can no longer lie to you. When the testing is over, you will be… missed!" -GLADOS.
"Did you know you can donate one or all of your vital organs to the Aperture Science Self Esteem Fund for Girls? It’s true!" -GLADOS.
"What are you doing? Stop it! I-i-i-i-i-... Weeee are pleased that you made it through the final challenge where we pretended we were going to murder you. We are very very happy for your success. We are throwing a party in honor of your tremendous success. Place the device on the ground, then lie on your stomach with your arms at your sides. A party associate will arrive shortly to collect you for your party. Make no further attempt to leave the testing area. Assume the 'Party Escort Submission Position' or you will miss the party." -Do I even need to say it?
"Some day we'll remember this and laugh. And laugh. And laugh. Oh boy. Well. You may as well come on back."
"Didn't we have some fun though? Remember when the platform was sliding into the fire pit and I said 'Goodbye' and you were like (deep male voice) 'NO WAY!' (normal voice) and then I was all 'We pretended we were going to murder you'? That was great!"
"You're not a good person. You know that, right? Good people don't end up here."
"You should have turned left before. It's funny, actually, when you think about it."
"I'm not kidding now. Turn back or I WILL kill you. I'm going to kill you, and all the cake is gone. You don't even care."
"You're not smart. You're not a scientist. You're not a doctor. You're not even a full time employee. Where did your life go so wrong?"
"Starting now, there's going to be a lot less conversation and a lot... more... killing. What was that? Did you say something? I sincerely hope you weren't expecting a response. Because I'm not talking to you."
See? Creepy.