That was a big part of what ruined the sport for me as a kid. I played for about 10 years from ages 5-15. The final straw for me was one of our All-Star games. We were the "B" team, and the "A" team was supposed to be the ringer that could give Swansea, Mass. a run for their money... except that we were beating them in an elimination game.
After I cracked off a two run scoring triple, the "A" team coach complained to the umpire that I didn't touch 2B (which I did), and complained long enough that they called me out even though the umpire didn't see any infraction. Parents on my team were so livid, that one of the dads even stormed the field camcorder in hand, SCREAMING at the umpire about the injustice, something along the lines of "maybe you motherf*ckers can watch him touch the bag on video replay, since you can't get your heads far enough out of your asses to watch the actual f*cking game". The three of them went at it, a few other parents joined in, said parents were ejected, and the game went on.
The "B" team ultimately went on to lose a very close scoring game, while the victorious "A" team and their asshole coach went on to get mercy ruled by Swansea, Mass. I quit PONY league after that, and played one more year over in Little League (for whatever reason, PONY was way more competitive than Little League was in CT), only because my middle school friends were on the team and one of their dads was the coach. We sucked that year, I got tired of playing three sports (shooting and basketball), and called it quits with baseball.