This next test is very dangerous. To help you remain tranquil in the face of almost certain death, smooth jazz will be deployed, in three, two, one.

Smooth Jazz music plays for ten seconds and then dies out electronically

I've got some advice about getting covered in the propulsion gel.... do not get covered in the propulsion gel.

Cave Johnson: Greetings, friend. I'm Cave Johnson, CEO of Aperture Science. You might know us as a vital participant in the 1968 senate hearings on missing astronauts. And you've most likely used one of the many products we invented - but that other people have somehow managed to steal from us. Black Mesa can eat my bankrupt-...

Caroline: Sir, the testing?

Cave Johnson: Right. Now, you might be asking yourself, "Cave, just how difficult are these tests? What was in that phonebook of a contract I signed? Am I in danger?" Let me answer those questions with a question. Who wants to make sixty dollars? Cash. You can also feel free to relax for up to twenty minutes in the waiting room, which is a damn sight more comfortable than the park benches most of you were sleeping on when we found you. So! Welcome to Aperture. You're here because we want the best, and you're it. Nope. Couldn't keep a straight face.

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.

Oh, there goes another one. They're not inexpensive. I'd just like to point that out. It seem unfair to smash screens. You could give them to people. Instead of smashing them, unscrew them and give them to a homeless person. I don't know what a homeless person would do with one. But you get my point. And you can't unscrew them, they're bolted in. But - just stop it!