Explanation:

I think the narrator is a very tactful person. He knows how to deal with people. He

adjusts himself well to the circumstances. He immediately understands Tricki’s problem.

Tricki doesn’t suffer from any sort of illness. The main cause of its illness is overfeeding.

He takes the dog to his surgery. There he keeps it in a natural environment. The dog

gets well under his supervision and the natural environment of surgery.

Answer:

The narrator, a veterinary surgeon, is a capable and wise doctor. He handles Tricki properly which shows that he is sincere about his profession.

He does not operate upon the dog unnecessarily and cures him by altering his diet and activities.

He is a tactful person as he knew exactly how to convince Mrs Pumphrey to hospitalise Tricki for a surgery. His decision to inform Mrs Pumphrey to collect Tricki supports his sensibilities even though he was tempted to keep Tricki as a permanent guest.