Takes place shortly after 5x2, Bobby is struggling to adjust to life in a wheelchair. Since Cas can't heal him, he starts demanding the angel help out in other ways. I specifically remember him telling Cas to come by at a specific day and time every week and to not be late. By the end of the fic (it's not a long one, don't even think it's multi-chaptered), Cas gets attacked by other angels, and then scrambles to make it to Bobby's on time with the groceries the old hunter wanted. Bobby starts seeing Cas as one of his adopted strays.