He's got mental issues, that goes without saying. Unfortunately a lot of those Brazilian players come from humble beginnings, with no guidance in life then become rich and famous too young and aren't prepared for that. Remember Breno (Bayern @DAiDEViL), The guy who set his house on fire?
You don't even need to go that far back, Elano was arrested Yesterday for alleged assault on the owner for the club he played against. They're simply fucked in the head.
In this case, thanks you Felipe piece of human waste Melo.