This. Not always, but not infrequently, either. Demonstration of anger can be mild, but it should clearly show pushback. There are many cases when we are being

This. Not always, but not infrequently, either. Demonstration of anger can be mild, but it should clearly show pushback. There are many cases when we are being asked to do things that the person requesting them knows are not realistic. If one is being asked to do three things that are estimated as week long each in a week plus something else a "man, how can I do this? I cannot work 24 hour days" may be all it takes.