Hypothetically...

Douglas: That's what? Ninety seven? And three on the Flight Deck! A hundred!

Arthur: Brilliant!

Martin: No, not in the Flight Deck

Douglas: Hypothetically...

Martin: I don't care how hypothetical it is, I'm not flying with a live otter in the Flight Deck

Aah, Martin.
I have a new obsession! CABIN PRESSURE! Yes!
Anyway, this is from the episode "Ottery St. Mary"
As you can see, the otter is wearing Martin's cap

Cabin Pressure belongs to the BBC and John Finnemore