Me and my dad(Pizza Dude at the Pinto) umpire all the time. We've been doing it for years and became friends with most of the players we umpire. The only problems we ever have is with parents getting into it too much.
As for the "take the white corners out" thing, that all goes away in high school and college where the best athlete is the one who plays. I play for Utica College and black guys have been benched for whie guys, and vice versa. Race leaves when you get older but there are always as*holes lookign for excuses.
BTW, tell Shaq's dad that Adam Archuleta(Rams SS) and Jason Sehorn are Pro Bowl WHITE defensive backs.