I have experienced this cultural shock today ! As Im french studying in UK i have to deal with english people everyday, although i never had any problem until now. I was shocked today when one my english team mate sent us a mail out of nowhere saying she has felt really bad ( crying) for few days because of our group and decided to leave us for another group. Instead of communicating with us she decided to hide her malaise and suddenly took this extreme decision. In France this situation is unlikely to happen, we love arguing too much :) !