The goblins demanded 5 wooden window frames, so I made 5 wooden window frames and hade them in a stockpile. When the goblins came back to claim their price I let them have it and all was well. Then I noticed that all 5 window frames where still in the stockpile. At first I thought it was a bug that caused the goblins to not take what they’d asked for, but some times later I noticed that 5 window frames were missing on my building.
I expected them to take the frames in the stockpile first, though I admit it’s quite charming to imagine them runing into town and pulling the window frames out of the walls, just to be rude. If that’s a feature it should be animated though and you should be able to place new window frames in the openings. As it is now (as far as I’ve seen), if you’re not in building mode you can just place window frames on vertical surfaces and then they have the opening towards the surface, so if you try to place them inside an opening in a wall they will face the wrong way.
P.S. Love the game!! D.S.