Wheatley was enjoying testing.

That is, until he almost lost his legs to a Thermal Discouragement Beam he accidentally activated a few moments too early in Test Chamber 35, at which point he remembered exactly how dangerous Testing is and started inconspicuously searching for an escape.

It wasn't until Test Chamber 41 (With a metric ton of turrets) he saw it.

There, in a small unwatchable nook, sat an Aperture Science Genetically Modified Hyper Intelligent Super Sentient Avery Specimen sitting in its nest, incubating its egg.

He then inconspicuously started walking over to the hidden nook, and shooed the bird.

When he picked up the little round-ish ping-pong-ball-ish egg, he very 'gently' stuffed it into the front pocket of his labcoat.

He finished the Test Chamber as quickly as he could, (It took about 45 minutes.) decided that all the turrets could go to hell, and then strode into the elevator to go the next test.

Then he saw his chance.

The Test Chamber he walked into was still being built, and there were exposed panel arms everywhere frantically picking up their panels to build up the chamber.

All he had to do was throw the egg at one of them.

FISZZZCH

"What are you doing?"

He wanted to taunt her, to tell her that he was escaping and that there was nothing she could do about it!

But he couldn't. His vocal processor still wasn't taking any of his commands. So he did the next best thing.

He went up to one of Her cameras, and stuck his tongue out.

"What is the meaning of this?"

Then he waltzed right out of the Test Chamber, and jumped onto a catwalk.

"Come back!"

Yeah, like he would listen to her.

After an hour of walking, he finally found a door.

And it was locked.

Fortunately for him, he had seen the Scientists punch in the code to tons of doors, just like this one, from his management rail.

Now if only he could remember the code…

1234? No.

2341? No.

5684? No.

Why couldn't he remember the code?!

After a few hours of frustration while trying to remember the code, he slipped and banged his head on the keypad.

1894 was entered.

And…

And…

It was the wrong code.

But while he was waiting for the code to register, he didn't notice he was putting all of his weight on the door.

CCRRAAACK

And then the door fell out of the doorframe.