What play/foul/whistle made you curse the loudest this season?

For me it was the missed reverse dunk by Josh in Game 2 vs. Boston, with his jump shot in the waning moments of the Game 6 loss is a close second. We should have won Game 2 but we played down to the level of the Celtics sans Rondo. Right behind those: Marvin's decision to drive and dunk in that last game at Madison Square Garden with like 3 seconds left in regulation.