How Trusty lost his sense of smell.
Lady: He's dreaming.
Jock: Aye. Dreaming of those bonny bygone days when he and his grandfather were trackin' criminals through the swamps.
Lady: They were?
Jock: But that was before...
Lady: Before what?
Jock: 'Tis time you knew the truth, lassie. It shouldn't have happened to a dog. But, well... Trusty has lost his sense of smell.
Lady: No!
Jock: Aye. But we must never let on that we know, lassie. 'Twould break his poor heart.