Freeze, Starve, and Break Stuff

Ever since he was old enough to throw a punch, Raphael had needed to learn who he shouldn't fight. For as long as he can remember, he's been reckless and self-destructive. His anger would get the better of him sooner or later, but no one in his family knew why.
He did. He knew exactly why he had to get into fights he couldn't win and deal with the consequences alone. He just couldn't put it into words.
Maybe Donatello was smart enough to understand.