Listen to me. We had a lot of fun testing and antagonizing each other, and, yes, sometimes it went too far. But we're off the clock now. It's just us talking, like regular people. And this is no joke: we are in deep trouble.

Did you feel that? That idiot doesn't know what he's doing up there. This whole place is going to explode in a few hours if somebody doesn't disconnect him. I can't move, and unless you're planning to saw your own head off and wedge it into my old body, you're going to need me to replace him. We're at an impasse.

Some emergency testing may require prolonged interaction with lethal military androids. Rest assured that all lethal military androids have been taught to read and provided with one copy of the Laws of Robotics. To share.

All these spheres are made of asbestos, by the way. Keeps out the rats. Let us know if you feel a shortness of breath, a persistent dry cough, or your heart stopping. Because that's not part of the test. That's asbestos. Good news is, the lab boys say the symptoms of asbestos poisoning show a median latency of forty-four point six years, so if you're thirty or older, you're laughing. Worst case scenario, you miss out on a few rounds of canasta, plus you forwarded the cause of science by three centuries. I punch those numbers into a calculator, it makes a happy face.

Some days, you are the Hunt; some days, you are the hunted.

Cave Johnson: As founder and CEO of Aperture Science, I thank you for your participation and hope we can count on you for another round of tests. We're not going to release this stuff into the wild until it's good and damn ready, so as long as you keep yourself in top physical form, there will always be a limo waiting for you. Say goodbye, Caroline.
Caroline: Goodbye, Caroline!
Cave Johnson: She is a gem.

Do you know the biggest lesson I learned from what you did? I discovered I have a sort of black box quick-save feature. In the event of a catastrophic failure, the last two minutes of my life are preserved for analysis. I was able - well, forced really - to relive you killing me. Again and again. Forever. You know, if you'd done that to somebody else, they might devote their existence to exacting REVENGE! Luckily, I'm a bigger person than that. I'm happy to put this all behind us and get back to work. After all, we've got a lot to do, and only sixty more years to do it. More or less. I don't have the actuarial tables in front of me.