[ There's a big difference between "nothing" and "it doesn't matter," but with the argument ending, Cas doesn't push for details. He'll just avoid Sam the younger, which should be easy enough since he's seemed to have made himself scarce since that conversation, unsurprisingly.

Cas looks down at the garden briefly, the next subject, before looking at Dean again. ]

Weeding, mostly. Hope you don't mind my taking the initiative here. I promise I haven't been telling any of the pea sprouts about their past failings.

[ When it came to repairing buildings or caring for plants, it's obvious where Cas's preference fell. Help to feed the people he cares about and also commune with nature? It's one of the chores of surviving that never felt like one, to him. ]