There is a window that faces the gated side of our house behind our bed. A few nights ago Kai was on the bed staring into the dark of the window and no matter what I couldn't get his attention from the window. Finally he let out a really deep bark and he tried to jump up on the window from the bed. He did about four more of these barks which I was shocked because I have never heard him do a "alert/warning" bark. He is seven months and I have only ever heard him do a "play" bark. After a while I realized something might be back there and I turned the light on but nothing was there and I showed him that nothing was. Well today my aunt noticed that on our side of the house a piece of wood she uses to block the bottom gap in the side fence was moved as if someone went under it. Its a huge piece of wood that wind cannot move, only a person. Now im not sure if that same thing happened that same day Kai was alert but I sure am relived to know I have a dog that would alert me! Proud momma.