Well, that's one show I'll never watch. I couldn't stand the heavy focus on Randall throughout the series. And I think the way Kevin was almost totally ignored in this episode is a crime.
But, did you know Randall was a foundling abandoned at a fire station? S'truth!
And luckily for Randall, Kevin and Kate's triplet died at birth, so Randall got to go home with parents who doted on him to the detriment of their biological children.