And then there was a Doctor, suit jacket off, sleeves rolled up, elbow-deep in equipment and TARDIS components, working in the console room. Wires and rather rusty-looking equipment poured out of an open bank, leading their way across the console room and attaching to...a large topiary plant. Just sort of sitting in the corner of the room.
Well, it could've been a topiary plant. And the Doctor's TARDIS could've turned into a topiary plant if it wanted to, but it didn't.
"Romana! Turn on the central resource valve, should start the energy flow acceptance on your end," he called out, swearing as his laser spanner slipped and fell between the grates.