Factual error: In "The Bloody Guardsman" case, Bainbridge, who is in the Welsh Guards, is referred to by everyone, including himself, as "Private Bainbridge." The Foot Guards use the rank of Guardsman instead of Private.
Factual error: In "The Bloody Guardsman" case, the guardsmen are on sentry duty unarmed. Sentries always carry rifles.
Chosen answer: That line of dialogue has never actually been spoken in any of the Sherlock episodes, during seasons 1-4. However, that line is written in someone's fan-fiction story online, where it's said by Sherlock and directed at Anderson.
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