Originally Posted by RKMeibalane
I don't doubt that Quentin has difficulty controlling his anger. BDS mentioned earlier that he broke his wrist smacking the barrel of a bat after fouling off a pitch. That doesn't mean, however, that he doesn't have the right to feel anger if someone has hurt or threatened him. Anger is just as legitimate an emotion as happiness or love. The problem with anger is that it's unpredictable nature often drives people take actions that they later regret, although love often has that effect, as well.
I think it's significantly more likely he was angry already and going to the plate waiting to lean into a close pitch to do this.