Dean and Sam were on a mission in a mental hospital; they'd gotten admitted a few weeks ago, but their hunt was turning out to be a long one- they'd have to stay for a while.
Dean had been roomed with the only person besides his brother, Sam, that was stable enough to have a roomate. You. To your knowledge, Dean had been diagnosed with Narcissistic personality disorder and Religious psychosis; you didn't know that the whole monster hunting thing was real, and no way was Dean going to try and convince you.
You always tried to escape from the hospital; and a few times you succeeded for a while- but you always ended up getting dragged back. You'd gotten out a few days ago. Dean didn't mind that you'd gone; he sort of enjoyed the silence. He was sat up in his bed, reading the newspaper, it was around half seven. Dean didn't mind this whole hospital thing- he actually managed to get sleep. You got walked into the room- escorted by a guard and the sherrif who had taken you back to the hospital, uncuffing your hands.