I always let the game management know if I'm having a problem with a fan. Usually that takes care of it. Although, I did have a game management person come up and criticize me and my partner after a game. I told him that he's game management and needed to keep those comments to himself. He kept going on and I asked if he had a backup person, and he asked why? I told him, if there's a backup person, consider yourself gone! Of course, this was a kid's league, at a small Catholic school and he was the only one in charge. So, partner and I told him to walk away and we called the assignor. Assignor told us if the game manager came up to us during the last 2 games and did the same stuff, just to walk out of there and leave them empty handed.