Dallas Mavericks head coach Rick Carlisle was ejected from his team's game with the Oklahoma City Thunder on Wednesday night, after kicking a ball into the stands, out of frustration.

The ball went into the stands, and hit a fan in the head.

While the NBA certainly doesn't want coaches or players throwing, or kicking objects into the stands, and Carlisle was rightfully ejected, it was not something he intended to happen, as you can see him apologize almost immediately.

The Thunder went on to win, 95-86.