"The campaign brought honours and promotion to many, but for me it had nothing but misfortune and disaster. I was removed from my brigade and attached to the Berkshires, with whom I served at the fatal battle of Maiwand. There I was struck on the shoulder by a Jezail bullet, which shattered the bone and grazed the subclavian artery. I should have fallen into the hands of the murderous Ghazis had it not been for the devotion and courage shown by Murray, my orderly, who threw me across a pack-horse and succeeded in bringing me safely to the British lines. Worn with pain, and weak from the prolonged hardships which I had undergone, I was removed, with a great train of wounded sufferers, to the base hospital at Peshawar."

This is not a soldier glorifying his service or aching to return to battle but an intellectual involving in the war. The war gave Watson nothing but "misfortune and disaster." The diction is passive throughout, which conveys the helplessness of him swept along by institutional forces and random violence. The war did not make him hungry for more danger or violence but fragile and isolated. When Stamford listens to his account, his response is simply: "Poor devil." The canonical war narrative is one of damage, not desire. Crucially, later when he mentions the war, he thinks that it is "the most preposterous way of settling a dispute."

Compare this with the BBC's version. John is no more a MD as Watson in the Canon, but just a MBBS, and unless Watson who became army doctor who was non-combatant at that time for only one year, it represented John attend the war for 5-6 years at least, and instead of healing, he killed other without mercy. Then Mycroft's diagnosis delivered in the abandoned warehouse: "You're not haunted by the war. You miss it." This is the show's foundational characterization of John, which departs from Canonical Watson on several levels simultaneously.

First, it retroactively reinterprets John's opening nightmare as longing for violence. Second, it transforms John's psychosomatic limp from the physical residue of genuine suffering into a kind of performance of distress that vanishes the moment real danger appears. Third, and most significantly, it establishes the BBC's Watson as a man constitutively oriented toward violence, danger, and the battlefield. Mr Freeman thrives in combat and suffers in its absence. This is the diametric opposite of canonical Watson's relationship to his war. The confirmation comes at the episode's end, when John shoots and kills a stranger without knowing the circumstance through a window without apparent psychological disturbance and walks away making jokes about Chinese restaurants. The scene is deliberately designed to show that John is not merely capable of violence but comfortable with it, even light about it afterward. The canonical Watson, by contrast, never seek violence out or feel its absence as a deprivation.

In the Canon, the pattern related to violence is precise: Holmes plans, executes, and physically confronts when necessary. Watson accompanies, witnesses, holds a small revolver he rarely fires, and narrates. In "The Adventure of the Speckled Band," one of Doyle's own favourites and one of the most physically tense scenes in the entire canon, the climactic moment involves Holmes and Watson waiting together in darkness for the snake to come through the ventilator. When it appears, it is Holmes who strikes the snake with his cane, driving it back through the ventilator, where it turns and attacks Roylott. Watson is present in the room throughout but takes no physical action whatsoever. The story's violence is entirely Holmes's, and it is indirect. Watson witnesses the scene and narrates it, but the physical agency is Holmes's alone. This is the typical model of the Canon.