I'm looking for stories pre-Series/pre-Stanford which focus on Sam growing up. Stories in which he is abused or simply neglected by John, for example left alone too long during a hunt without money or being ignored when he is sick etc. It can be Wincest or Gen and it can be either John is being purposefully awful to Sam (because of the YED or because Dean got hurt or...) or he is just so focused on Dean/hunting that he forgets Sam.
It can also be that someone else (Dean,Caleb,Ellen,Bobby,Pastor Jim...) realize what is happening and step in to help Sam.
No rape/dub-con please! Major Character death is alright though I prefer everyone to stay alive :D