When we suffer from a mental illness of any kind or an addiction to drugs or alcohol, we hide this side of ourselves far away. We hide it perfectly when we are at work or with friends. I can attest to this, having hidden my mental illness for too long.
"For me, it was clear that it was only mental health (...) I was certain that it was not a problem (of addiction) (...) Every morning, he arrived very ''focused'' on the job. He was a guy who took care of himself, who took care of what he ate. That's why for me it's a total surprise, so much so that even his closest teammates never saw anything, it's very surprising." - Waite
It's amazing how much "poop" humans keep inside. Derek Aucoin once told one of our baseball players who was given a clinic to empty the poop after a bad pitch. Since then, I have applied this teaching in my everyday life.