Our dog has always been pretty fearful of children (he is a rescue so we don't know too much of his history before we adopted him). Whenever children are around him, we just let them know that our dog is a "scaredy dog" so to be extra gentle. Today, however, I was out walking him in our neighborhood, and there was a girl sitting on the sidewalk drawing with chalk. When we approached her, he got very anxious and started growling, and all the hair along his spine stood straight up. He has NEVER had this reaction around children before, at least in the time we have had him. We definitely don't want to encourage him reacting this way, but want to be very cautious of his fear and not make it worse. Any advice?!?!?!?!