My 16-year-old son referees for our town sports programs. Everyone who plays (and works) at these games is from our community. There are no tryouts, and everyone who signs up can play. The league is focused not on high-level competition but on kids playing together.   A few weeks ago, my son was officiating basketball playoff games for girls in grades 3-6. During overtime in one particularly close game, my son called a foul on a player. Her father, who had been grumbling about calls