Two people who can't communicate like god damn human beings go and make each other angry? Why I never figured that'd be the case.

If someone says something in an instance and you don't want to do it, speak up and talk about it. How about "I'm just trying to do this quickly, man, mind if we blow through it?" Or... anything? Just talk like you know how to interact with another person instead of getting all huffy and writing a post on the forums?