(Gwen has knocked Merlin out after catching him corrupting Arthur's bath water)
Gwen: There was a problem with the bath water.
Gwen: Yes, it's cold. Very cold. Merlin's gone to remedy it.
(Arthur motions to try it)
Gwen: I don't think you can have a bath today!
Arthur: Right. Good job I'm not very dirty, then.
Gwen: Good job indeed!