Not hearing a noise during a perception check is just as valid an outcome as hearing a noise. Therefore a player who hears nothing would have no idea if he succeeded, only that he heard nothing. For another player to see his dice roll and respond by attempting to roll his own check is by definition metagaming. You could have everybody roll perception checks and give the rogue a bonus for being up against the door, or if the rogue continually fails his own perhaps the monk would push him out of the way and say, "This is how you listen to a door okay fail-rogue?" Both logical in-game reasons for the extra checks.
