Sitting in one place for too long makes Dean itch to drive an hour or five in the Impala, and they’ve been studying Kevin’s notes for - by his count - two hours and thirteen minutes. So yeah, he’s a little twitchy in his seat, ignoring Sam’s glares because Sam knows him well enough to know exactly what’s causing this.
“Says here, uh,” Sam gets out, trying to stifle a laugh, “Whoever undertakes these tasks must know an angel.”
