Song: "The Moisture Farm", Star Wars: A New Hope soundtrack, composed by John Williams

Doctor: 10

"Would you just look at this? It's brilliant!" grinned the Doctor, popping his brainy specs on and examining the readout on a computer screen. "They're literally farming water, pulling it out of the sky and from beneath the bedrock. Of course, they'll run out of water even faster now, and it'll rain even less, and the people will complain even more, and the scientists will work even harder to find new ways to suck the planet dry, but still, even when you're bringing down the government, you've got to hand it to them for being persistent…."

While the Doctor rambled on, no end in sight, Donna sighed and tapped her foot impatiently. Trying to interrupt would be useless, she knew, but they were right in the middle of a water processing plant of sorts. The Doctor had told her to hold on to the sonic screwdriver for him, and he was standing right beneath some kind of join in the pipe, all it would take was the press of a button… how could she resist?

~later~

"Well, they wouldn't know where we were if you weren't leaving a trail of water behind!" Donna shouted as they ran.

"Well, I wouldn't be leaving a trail of water if you hadn't gotten me soaking wet!"

"It's not my fault if you don't ever shut up when I'm trying to talk to you!"

"Donna, just keep running!"