For those who are defending Rafael for his outburst, look at Fletcher's reaction to the red card he recieved in the Champions League against Arsenal, which disqualified him from the final. He had even more of a right to blast that useless referee, but he just walked off. It was very classy of him to keep his calm in such a situation.
Now, I love Rafa, and I'm proud of his ascent this season. The darker side of me enjoyed his rant against Tevez and the ref, he's the perfect successor to Keane and Neville in being a fecking psycho. Yet he has to learn to restrain himself in critical scenarios, such as addressing the referee. Irregardless of how spastic the referee was, it would be better for him and us if he took a few deep breaths before talking. Now managers in the league and Europe will mark him as a potential target to wind up.
Inexperience showed on Sunday. I'm sure the imperfections will be ironed out with time.