"How was I supposed to know it'd explode?"

"Oh, I don't know – didn't the words 'don't push the big red button', 'warning!' or 'explosion imminent' tell you anything?" The Doctor flung the TARDIS doors open and stormed inside, flicking mud everywhere and pulling pieces of a dubious-looking green substance from his hair.

"If you know as much as you think you do, you'll know that the words 'don't push the big red button' only ever make someone want to push the button!" Rose retorted, shaking her muddy, gooey arms all over the console. Sparks flew from it in protest, one catching Rose on the cheek. "And you can keep your nose out!"

"Don't take it out on her!"

"She sparked me!"

"You threw goo all over her."

Rose didn't get the chance to answer back – probably in the Doctor's best interests as well – before the doors slammed shut. Rose screamed. The lights flickered for a second, and then went out, plunging the console room into darkness.

"Well done." A sarcastic voice floated out from the dark, followed by a blue glow as the sonic screwdriver started up, illuminating the Doctor's face eerily.

"I hardly think that was me, worse things have happened." Rose stalked over to the captain's chair, dropping into it and crossing her arms. "Blame me again, why don't you?"

"Shut up." The Doctor sighed, and then seemed to reconsider a little. "Least you didn't try and pull her apart this time." She thought she saw a tiny smile cross his face, but it was quickly replaced by a look of annoyance, and something else she couldn't quite place.

"I didn't do anything!" Rose protested. Growing impatient, she crossed the room to where the Doctor stood flicking a dial. She was about to give him a piece of her mind when he stopped suddenly, and looked up at the ceiling with a confused expression on his face.

"What?"

"Doctor, why are you talking to the roof?" When he didn't reply, Rose waved a hand in front of his face. Batting it away, he just continued to stare, eventually sighing again in an exasperated fashion.

"Women…Fine, if that's the way you want it," he announced to the air. "But you're wrong."

"What's she on about? I'm sorry, if that's it," Rose called out, "I didn't mean to throw goo all over you!" The TARDIS hummed briefly, as if accepting the apology, but didn't turn the lights back on.

The Doctor looked over at Rose, an eyebrow raised. "She's only gone and locked us in."