I dont know if anyone has already suggested it, or if theres a plug in for it...but why not have a password for the boss protection feature, the same as the one for the Lock one. I've been caught in work a few times due to someone clicking on the hidden system tray icon and it popping up with all my converstations. A password (enabled by right click) could be handy for people who want to hide their msn, and make it that extra bit secure.
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