Playing musical chairs with pretend people

I was vacuuming yesterday and as I made my way into the dining room I saw Carathy and Caleb sitting on chairs they had moved to the kitchen. In the kitchen were three more chairs sitting empty. Carathy and Caleb were sitting silently on their chairs looking intently at the other three. Somewhat amused, I asked if they were plaing 'train.' Carathy explained, "No, we're watching pretend people playing musical chairs." Charming. A few minutes later Carathy continued her explanation: "Every time the music stops we take out a chair. Caleb and I are already out."
Not only were they playing musical chairs with pretend people; they had also managed to lose to them!