I had to have a more serious talk with him at one point because he was getting SUPER competitive and consistenly trying to spike the ball really hard to our side. He only got this reactive when it was obvious how bad he and Cabo were "losing", so I told him to "Breathe and come back down to Earth and focus on his strengths and have fun!" - He didn't take it so well. He yelled over me "Just hit the ball!" repeatedly until I stopped playing and walked over to him to speak directly about the learning opportunity that was in front of him for calming down and refocusing. rather than getting frustrated and overreactive. (Probably needless to say) he wasn't very receptive to my coaching in the moment and proceeded to be extremely competitive for the rest of class.