I have been called a rules lawyer by a few, but in my defense. They only complain when (after the DM ruled against there action) I announce out loud (usually) what the book states. Most are alright with this because it usually benefits players as well as GM/DM. I do so as to not slow game play or to frustrate those that are enjoying game, but to HELP prevent these Problem Players from angering the GM/DM with the players that are NOT trying to intentionally fudge the rules to play players vs. GM/DM.