Okay, just watched Critical Mass, and had a plot bunny/fic idea...
The whole bit with Sheppard and the dam analogy was adorable. But how did that come to mind for him so fast? Did he go through a dam phase as a kid? I mean, seriously, who thinks of a spillway off the top of their head?
So... where DID the dam stuff come from? The possibilities for Adorable!Shep or Kid!Shep or SecretlySmart!Shep are endless... Fic away! :D