YMMV / The Last Command

• Diagnosed by the Audience: Serguis has a strange head tic that he says came from a "great shock". After it's shown that it was due to watching the Russia he knew disintegrate around him as the revolutionaries roughed him up and seeing Natalie die, it seems like a form of PTSD, known back then as "shell shock" for veterans of the war. It's also emphasized when he starts hallucinating, seeing the crowds of revolutionaries that wanted to kill him.