I'm looking for a fic--I'm almost certain it was written before season four--in which Dean's idea of hell, though I don't think he knows for most of the fic that it is hell, is running a donut shop. (I think it's a donut shop.) Same routine every day, same customers (most or all of whom were one-off characters from elsewhere in the series) ordering the same things at the same time of day as always, etc etc. And then Sam turns up and the routines start to melt away.

Thanks!