Um... not quite sure how to tell you this, but I think you're missing someones?
Sprocket was very anxious about the missing Ducklings on Saturday night. He kept circling around, looking for them, and giving us deep, meaningful stares. The Ducklings were keeping Nana and Opa up until 10pm for their first sleep over as a trio. Keith and Evelyn have stayed a couple of nights already, but Colin wasn't willing to try it out until this past weekend. They probably weren't healthy enough to go, in retrospect, but Nana and Opa handled the disruptions with grace and enthusiasm. That being said, they must have appreciated their peace and quiet the following night!
However, Sprocket didn't know that. As we bustled around giving Malcolm his bath, reading stories, our obliviousness towards our missing progeny confirmed his suspicions that he really is the only responsible person (furson?) in the house.