Well some new AST's may not know that because i have seen it before. But most of the time, they are being the ultimate Eorzean cock. I had encountered once an AST like this when i was farming Emanation, and i just didn't use any shields. If we wipe, not my problem. If he/she wants to work double, not my problem. If he/she wants to be a chocochick, i let them be unless party agrees to kick them. Because i am tired of wasting my breath towards people like that. I either leave if it doesn't work out, or ask party to kick the player.

Other than people who are not English and cannot understand some elements in the game like this (it may easily be missed and no one is perfect, not knowing isn't a sin), i just prefer to stay away from these people. I can farm stuff with another group or another day unless party doesn't understand what's wrong etc.