Stiff upper lip? He's French! Not British
and he's no different to his enemy Ferguson really.
I enjoyed his standing amongst the Manchester United fans when he was needlessly sent to the stands for kicking a bottle (!?!) - even a good few of the United fans applauded him (accept a fat woman who seemed to steam down to where Wenger was just to shout "Oi, off, off, off, off").
I like a bit of whinging.... I like how it winds people up when really those who are offended should really take it on the chin or ignore it too.