This is something I was thinking about, too, but couldn't think of a good way to say it.
I guess I'd be concerned that we could go too far with it, and TOs could only be successful if you had a lot of nobles clicking their "Be hostile" links every turn.
Wouldn't it be easier to coopt current mechanic rather than creating a new hostile button?
I was thinking along the line of
-If there is looting - the TO works as a BTO
-If there is civil work - the TO works as a FTO
-if no one does anything - the TO works as a HTO
-If people contradict each other, the TO doesn't work and you're wasting your time.
