Good Sportsmanship

The coach called one of his 9-year-old baseball players aside and asked, “Do you understand what cooperation is? What a team is?”
“Yes, coach”, replied the boy.
“Do you understand that what matters is that we win or lose as a team?”
The boy nodded in agreement.
The coach continued, “I’m sure you know, when an out is called, you shouldn’t argue, curse, attack the umpire, or call him insulting names. Do you understand all that?”
Again, the boy nodded yes.
The coach continued, “And when I take you out of the game so that another boy gets a chance to play, it’s not good sportsmanship to call your coach dumb, stupid, or worse, is it?”
“No, coach.”
“Good,” said the coach. “Now go over there and explain all that to your grandmother.”