history: We just got a new puppy.  My older dog knew to let that one out first when I get home from work. We just got a new puppy.  My older dog knew to let that one out first when I got home from work. That is very cute_comma_ the little one probably couldn't hold its bladder as long. 
current: Definitely not.  I was surprised that he knew to let the little one go first!
next: That was very smart of him, maybe he remembers back to his puppy days.