They display cute behaviors. I had Roxy and Daisy out in their rat-safe room for a run today. Normally they just chase each other, or climb, usual stuff. Tonight they were, for lack of a better word picture, cleaning house. There were some bits of paper on the floor. They both decided that was not acceptable and started cleaning them all up. They have a few hiding places in the room, and all the papers were divided among 2 or 3 of their favorite spots. One being a comforter I have kind of bunched up on the floor, as a place for them to go. Most of the papers went under the comforter. I am almost afraid to look under to see just how much paper is there as there was a lot of rustling around.