> Anyhow, this is just my two cents relating an experience to show how a seemingly normal and friendly human being can revert to angry "RTFM"s.
The guy is not just a human being, he's also a professional whose job it is to know what he's doing. Shouldn't there be some sense of "duty to do a job well", not just "duty to care about someone's feelings"? If he's not pulling his weight and is failing at his job, then the poor responses are his fault also.