Urist McMason: There are suitible and identical rocks to build this wall already in place all along the proposed route? Okay then, I'll use them where they are. Why would I care which order and position they were assigned in?
Urist McAdventurer: I'm swimming in a river/lake, and the sun is about to set? I suppose I should get out soon - it will be getting cold, and it will take me longer to warm up afterwards.
Urist McPasserby: Someone is lying in the main corridor, injured and unable to move? I'd better help him get to the hospital.
Urist McChiefMiner: You want us to channel out this overhanging ledge? No problem - I'll start at the outer edge and work inwards. And Dastod? Sarvesh? Make sure no-one is standing on the tiles you mine out.
Urist McCook: You want to save all tallow for soap making, regardless of type? Okay then, I won't use any of it for cooking, even if someone brings in a novel variety that hasn't been seen before.
Urist McHauler: And you want to put all fat - regardless of type - in this stockpile, and all tallow - again, regardless of type - in that one? Sure, no problem.
Urist McBook-keeper: So your not interested in what type of leather all these clothes are made from? Okay then - that will save me a lot of work cataloguing them all.
Urist McMason: You want me to build a 1-tile-wide wall along the top of an existing wall? Okay, I'll start at the far end and work backwards.