Serioux was sent off after attempting to take a throw-in midway through the first half. QPR had employed a policy of placing a man in front of the thrower throughout the evening in order to try and lessen the impact of the Canadian's powerful throws only this time the player in question - Lee Cook - seemed to get in the way.
Cook went down like a sack of spuds, the linesman waved his flag and awarded Millwall a freekick for obstruction, the QPR players protested to referee Phil Prosser - none more so than ex-Lion Marc Bircham - and the end result saw Serioux walk.
However, according to the laws of the game - and the fact that the game restarted with a throw-in to QPR - Serioux never actually "committed a foul" that warranted a straight red. If anything, the Assistant Referee's initial decision to award a freekick for obstruction would have been the correct call, as Cook was clearly impeding the Millwall player's ability to take the throw.
Of course, of all this is now of little importance, as the decision effectively cost Millwall three points. But at the end of the day, if the referees cannot even get the rules right, what hope do the rest of us have?