I don't know how they settle heated pickup basketball disagreements at other courts in the United States, or even elsewhere in the world.
But there's a very simple way they are resolved at the Dean Smith Center in Chapel Hill, and it happened again on Tuesday evening.
A team of alumni was facing a team of current players. Brandon Robinson went down on the baseline with a hand injury, which caused the ball to trickle out of bounds. Robinson thought the injury happened before the turnover, and play should have stopped.