I'm looking for a fic I read a while back on AO3, where Coulson came back to work after a couple months recovering and is stunned when everyone reacts violently/emotionally. Turns out, he was misplaced some how, and everyone's thought he was dead, but he didn't know. Anyone? Payment in cookies is available.
More generally, I'm looking for any fics where Coulson comes back after his supposed death, and is startled to realize that the Team's thought he was dead all this time.