The kittens were having a little tug of war with a plastic bag tonight. The guest bathroom has two doors, and one was open, the other closed. A plastic grocery bag had gotten partway under the closed door, so Huggy Bear was on one side and Josie on the other. Whenever one would stop pulling, the other would pull it and the one who stopped would run back and get it again. Eventually they got distracted, but I'm sure they'll come back to finish the game.