Douglas: (draws breath)
Carolyn: Don't even think about it! But is it entirely without the bounds of possibility that you have an ulterior motive for this trip going ahead?
Douglas: Carolyn, I hope you know me better than that. At any given moment I never have fewer than seven ulterior motives in play.
There's going to be a fourth season of Cabin Pressure recorded in January ... lots more exchanges between devious Douglas and (rightfully-in-his case) suspicious Carolyn to look forward to!
P.S. Some sample clips here if you've never heard the show before.