When Aperture was in it's prime Cave really had no need to get his hands dirty anymore--but let it be said he was a man who was definitely not afraid to get his hands dirty, covered in blood, bits of bone and brain matter. There was something primal and thrilling about being the one to make that physical progress, to be the one to go where no man, robot or AI has ever gone before.

For science.

Dirk was absolutely right. Ready or not, Cave was doing this. With the needle/drill firmly planted in where it was supposed to, evident by a dull hollow thunk as it reached it's maximum entry point into Wheatley's brain, he barked the order, grinning with excitement.

Go head Dirk, hit that flashing green button on the screen. Let's see what this baby can do.

"Hit it!"