Maybe I am not the right person to complain about it, as I am also quite convinced about my opinions, wrong as they may be. But some of my collegues annoy me by being right, no matter what's the subject and how off they are (or by completely missing my point)...

At least I do not answer the question "Why should it?" with "Because I say it does!". Usually I try to make up an explanation or at least try to confuse people with weird stories...