@YvetteColomb, I've posted 2 questions. One was about dealing with a dangerous person while commuting, the other about dismissing street vendors. This question almost reads like somebody tried to combine the two.
That aside, I don't think there is anything wrong with saying 'get professional help'. It was one of the most stated things on my first question, the professional help here referring to getting the authorities involved.
I don't think MariLouA is wrong in pointing out that the question, as it is written by the OP, makes a lot of her fears seem irrational, and something that might …