Sentry (The Highlanders)
From Tardis Wiki, the free Doctor Who reference
A sentry was guarding the Jacobites who were imprisoned following the battle at Culloden Moor in 1746.
When Jamie McCrimmon played a tune with his pipe and the other prisoners sang a rebel song, he ordered them to be quiet. The Second Doctor claimed that he knew of a plot to murder the Duke, so the sentry brought him to Solicitor Grey. (TV: The Highlanders)
