And the thread is a unique form of catgut, easily distinguished by its peculiar pungency, found only in the Afghan provinces.
10 seconds sound clip from the The Great Mouse Detective movie soundboard.
You can hear this line at 00:08:16 in the Blu-ray version of the movie.
Quote context
[...]
- Wait just a moment. How did you know I was a doctor?
- Just returned from military duty in Afghanistan, am I right?
- Why... Oh, yes. Major David Q. Dawson.
- Uh... But how could you possibly...
- You've sewn your torn cuff together with a Lembert stitch, which, of course, only a surgeon uses.
- Amazing!
- Actually, it's elementary, my dear Dawson.
- What in heaven's name? Oh! Oh... My...
- Mr. Basil! How many times have I told you...
[...]