Enter the Marching Band

[Rich Ives]

Originally Posted by EsqUmp

Well, that's not true. An umpire can direct that they stop. The difference is that you issue an official warning if it is brought to your attention by the opposing team. Which brings up another point: most umpires aren't properly documenting the warning and putting it into post-game reports where required.

Well, yes it is. It says the effect of the rule is that when brought to your attention by the opposing coach. . .

IOW - you only react if it's brought to your attention. If it didn't have that statement then you could react on your own. But it does have that statement.