John Corey Whaley said this quote

But at home, that same day he'd jumped into the fountain, he'd gotten so anxious, pacing around the living room listening to his parents try to calm him, that he suddenly just lost it completely and slapped his face. He immediately started crying, confused and guilty, looking up at his parents like he had no idea how it happened. And, really, that's the way it always was with the hitting. It would happen so fast, his body shaking to release the tension that built up from all the thoughts swirling through his mind and all the air he was having trouble breathing and all the loud beating of his own heart ringing in his ears. It had to get out and that was the path it chose. Slap. Instant relief.