I've been experimenting with trapping and training and building a captive breeding programme for the local wildlife. I made an obvious error (it involved being distracted by a mood), and the not-quite-tame male and female giant grey langurs got away. Now they know a few facts about the fort. (http://i1134.photobucket.com/albums/m616/Threequarter/DF%20ominous%20facts.png)
They have not submitted to retrapping, but they attacked an apricot-picker, and they stole a bucket. They know just enough to be not friendly towards anyone from the fort any more. But what do they plan to do with the bucket, I wonder?
I'm also surprised by the blind cave bears being generally familiar about the fort. I breached the top pinnacle of a cavern, and immediately walled over the puncture. How could they possibly be aware of us as anything other than from a moment of diagonal gap in the roof of their cavern, a year ago? Are they familiar with the vibrations we make in the walls?