LOL, Duncan does the nose thing too...like he's trying to cover up the treat but he's not..? Than he'll walk away from it and come back and look at it from all different angles to make sure it's hidden I guess. But sometimes it's not, it's in plain sight but he'll be satisfied... I have no idea what goes through their heads!

My childhood dog Bandit used to take his bones and hide them in the middle of the living room rug, he would spend 15 minutes pushing the carpet with his nose and there it would be, in plain sight...He would sit back and admire his work. If you "found" it, he would look so disappointed and start all over again somewhere else. He would even "check" his work by sitting next to the bone and barking at us to see if we could find it....he wouldn't stop until we did so we would pretend it took us a long time to find it hidden there in plain sight in the middle of the room!!