without having to disconnect my? chatting availability with others? I already know that I can appear off line while on FB, but I just don't want to chat with ONE person. So how do I block them from chatting with me? Other than the chats I have no problems with them. I can't just say stop chatting with me and I don't want to have to give them the blow off all the time. So if there is a way for me to appear invisible to this person only please let me know thanks.