Frustration manifests itself in many different forms.
In Derrick Rose, it's coming out with every shot missed after his first full-contact practice.
An s-bomb drops. A ball is punched to the other side of the court. This is not who he is, but it is who he's become. Having the game taken away -- even by injury -- can do that to a person. It can eat away at the chillest of demeanors.
"Is it frustrating?" I asked him immediately afterwards. "Frustrating as hell," he said back.