“It wouldn’t kill you to help!” Clara grumbled as she hacked away at the vines tangled around the TARDIS.
The Doctor waved his sonic screwdriver aimlessly. “Doesn’t work on wood.”
Clara paused to brush her hair out of her eyes. “So pick up a machete and use that!”
“I don’t have another one.”
“Fine!” Clara thrust the blade at the Doctor. “You do the hacking and I’ll stand around like a useless lump watching.”
“I don’t think you’re useless; you’re doing an excellent job there. Very effective.”
“That’s not what I… Forget it.” Sighing, Clara went back to hacking vines.