About 5 or 6 seasons ago, our CYO boys game had no refs show up. Under league rules, the coaches can agree to have non-refs ref the game (but in doing so agree that the final result stands). I was nominated to be one of the referees since people see me as knowing more about the rules than anyone else.
Our league has a rule that on the 6th grade level, a team that is up by 10 or more points can no longer full court press or trap outside the three point line. And this opponent was so good that it was obvious that the 10 point lead was going to come quickly.
So once the 10 point lead comes, we have one of the visiting players pressing in the backcourt, so I whitle and signal/call out "Illegal defense warning on red." As I was administering the ensuing throw-in, I heard a fan say "What is this, the NBA?"