Raptors star DeMar DeRozan lost his cool at the end of a Drew League pro-am game, chucking the ball at the referee before leaving the court.

It’s not exactly clear what had DeRozan so heated, but a longer clip of the incident includes some earlier footage from the game in which DeRozan gets upset over a no-call and then berates the referee after being given a technical:

It’s summer, man. Time to relax.