Aww! That is adorable and perfect headcanon. I can totally picture Sherlock's little bow of invitation over the bowl before he commences expositioning.

I saw this:

http://www.pinterest.com/pin/321866704594216001/

And immediately thought of Baby!Stark's daemon hanging out with Aunt Nemi.

Also, relevant to your interests:

http://themetapicture.com/a-soldier-and-his-squirrel/