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Female officers in the armed forces and police don't have difficulty in controlling without creating confrontation or more trouble. Some of the skills are innate others learned, but they are there. I saw one documentary where a woman military officer, addressing a drunk inferior, said "Don't call me ' love'; I'm your officer , not your mother!". I suspect young Sian (she's only twenty-seven) will have equally crushing remarks to players who try to be matey, as they will do with any ref. And swearing? She'll have heard it all, just as the men have, and will ignore it, as they do, unless it's to them.