invisible mode

I think there should be an option where we can appear offline so if we don't want people on our buddy list or clan bothering us we can hide and play in peace. Sometimes kids keep bothering me for zp or to use my guns, like I just got the xmas mp5 a couple days ago and I haven't been able to enjoy it because people follow me in to rooms and keep asking to use it. I especially think the thing where they can click your name and stalk what room you are in should be optional.