Basketball referees have to be aware of a lot of things – giant players, flying balls, even the occasional Jason Kidd soda spill.  They’re not, however, used to keeping an eye on clipboards.

Watch as Atlanta Hawks head coach Mike Budenholzer flings his clipboard onto the court, hitting referee Haywoode Workman.

To his credit (or out of fear of retribution), Budenholzer immediately apologizes to the official.

His team went on to lose 91-86 to the Nets.  he didn’t leave happy.