"You see, this thing-" she contemptuously thumped the box "-needs updating, and he won't link in the new ordnance. So, I tried to jack in the G129AT, some old wiring fused... and I ended up here. Now the door won't close, the Cloister Bell's ringing because the TARDIS thinks it's under attack from the Pus Creatures Of Rakos, and I just know he'll wake up any minute."