An hour later, he went to the door, and I let him out.
The next day he was back, resumed his position on the couch and slept for an hour. This continued for several weeks.
Curious, I pinned a note to his collar: "Every afternoon your dog comes to my house for a nap".
The next day he arrived with a different note pinned to his collar: "He lives in a home with four children - he's trying to catch up on his sleep.
Spoiler:

