I was talking to Brad Feldman on his Revs radio show today about players who lose their temper. He brought the topic up in the context of Blanco's recent behavior. I hung up after finishing up my bit on the show with Brad and waited to talk to some Galaxy players. 
The press is grouped by Galaxy staff to one side of the field. No one in the group of reporters had requested a Carlos Ruiz interview, so we were puzzled when he headed over. Carlos proceeded to yell at Rene Romano, a writer for Fox Sports, about something Romano had written about him. Carlos was furious and calling Rene names in Spanish. "Stay away from me," Rene warned. Carlos stomped off in a huff (that's when I took the picture).
Rene's theory is that Carlos is bent out of shape about lack of playing time and angry that Rene wrote about Carlos taking extra time to stay in Guatemala during his national team call-ups there. Plus, he's probably worried about getting traded.
Still, yelling at the press to stop writing about you is probably counterproductive.
Just had an interview with Carlos Ruiz. I'll post the audio later, after the story I'm working on runs. He's here at the stadium to support Guatemala in their efforts to qualify for the Olympics. At one point, I asked him if David Beckham ever talks to him in Spanish. He said yes, then noted that Beckham's Spanish is probably about the level of his own (Carlos) English skills. Actually, Carlos speaks English quite well. I conducted the interview in Spanish, though, mostly because he usually says a little bit more when he's speaking in Spanish. Another journalist once told me that even though he speaks Spanish, too, he always interviews Carlos in English. "His answers are more blunt in English. I like that honesty and simplicity, so I always ask him stuff in English." (It wasn't Luis, by the way.)I did switch to English for one question. Carlos didn't miss a beat - he answered quickly, speaking Spanish.