I proudly let anyone who cares to know that I am a Christian. I am not sure how a member of the SA would answer if I asked them that question, although they would probably state that they were a Christian. As I stated in my previous post, they teach things that are contrary to the Word of God.
So I take it that instead of giving a simple "yes" to the question from a Salvation Army member, "Are you a Christian?", you would have said something to the effect of, "Yes, I'm a Christian, but your not, and here's why".