My father played semi-pro baseball and encouraged me to play little league. He would be at every game and practice, watching my every move. I got 1 hit all season and after every game I was lectured to for at least an hour on everything I did wrong. Needless to say the next season I found an excuse not to join little league. I still love my dad, and when he comes to visit he likes to watch me play softball in the league at work (thank G-d there have been no lectures).
I have had other moms tell me at ballgames how their husbands will critique the games all the way home, fussing at the kid for messing up a play, telling them what they should have done - with the kid ending up in tears. One mother told me she drove a seperate car just so she wouldn't have to listen to it.
The worst thing I've seen is a 10 year old trying to pitch wiht their daddy standing on the side lines yelling at them. How awful to do that to a child and I would hate to be in that home when the boy begins to grow into a man and realizes he doesn't have to take it. (Bye-bye baseball)