I can think of a category, maybe beyond expedition - a quest, or as Chevy Chase termed it in one of his Vacation movies, a "f*****g quest." As in "this is no longer a fishing expedition, this is a quest, a f*****g quest!" This would be when an expedition turns horribly bad due to bad weather, bad information, bad directions, forgotten/broken/inadequate/wrong equipment, mistimed runs, etc., etc., and you are too far along on the journey, or too stubborn, just to give the damned thing up. It's the kind of expedition where your buddies gradually start talking quietly among themselves just outside the glow from the campfire at night, casting furtive glances in your direction, while you sit staring fixedly into the fire , thumbing the edge of your knife, muttering to yourself.