1. Hey, looking for a story i read years ago on fanfiction. I think it was called second chance and it was an AU after season 3. Instead of Dean dying, he was severly wounded and badly scarred and i think he lost an arm too. I remember Sam eventually gets Dean a prosthesis and he uses it to slap a waitress who was previously rude to him when they went to a diner earlier in the story.
Not much but hope its enough for someone to recognise it.

2. Looking for other stories where Dean or jensen has to deal with some sort of facial scarring or the loss of a limb or something along those lines. And Sam, Bobby, Jared or Misha has to help him deal with it.
Can be any pairing- Gen, Dean/Sam, J2, Jensen/Misha. As long as Jensen or Dean is the one with scarring and injury.

3. Any stories where either Dean & Sam, or Jensen & Jared start with a prank war, but a prank goes wrong and either Dean or Jensen ends up injured and Sam or Jared ends up feeling guilty about it.

4. Any stories where Dean & Sam end up running into some of Sam's friends from college and treat Dean as if he's an idiot, either because he dropped out of school or because hes 'pretty', which in their eyes means stupid.