Wendy MacNaughton over at The Rumpus has put together a solid pictorial of mission bars from the eyes of bartenders.  While the whole thing is worth checking out, one of the best parts was the segment dealing with regulars never staying at one bar.  I've done that fourth dance a few times myself, only sub Delirium for another bar that isn't a perpetual nightmare.

[The Rumpus, h/t Mission Mission]