Now here is an interesting idea; security software that learns about how you use your computer and goes ballistic when you do something out of character.
Beyond the obvious question about whether it will shut down my computer when I pledge my everlasting love to MissM, this is worth thinking about as it could deny a thief use of my computer after they have stolen it.
There is more than a little potential for "Big Brother" type shenanigans with security being built in at low levels. As soon as it starts happening, watch the RIAA ask to have file sharing banned at the hardware level. And then Homeland Security might be asking for certain tracking stuff to be included. Even so, some protection at this level might be desireable.