“We're up all night,” John said. “Drop in whenever, you can't do any harm.”

Hee! Aww, new parents. :)

It was as though Sherlock was climbing up over the wall, and Lestrade was using the door—more efficient, but not allowing him to see the view properly.

I really like this explanation for what Sherlock does.

It’s great how you nailed Sherlock’s relationship with both John and Lestrade (and Gladstone, actually!) in this story, and how perceptive Lestrade is about his role in Sherlock’s life. And he’s right, it can be quite fun! Very cute story, and great case!!