whats the rulebook say

[SanDiegoSteve]

Oh, I get it now, you meant that Little League is not safety oriented. That is not true, either.

In Little League, if a batter unintentionally (that means on accident) throws his bat carelessly, a warning is given to him, and his teammates, that the very next time it happens, the offender will be ejected from the game.

If a player intentionally (that means on purpose) throws a bat carelessly or maliciously, he is immediately ejected without any warning whatsoever.

In our original situation, it was an accidental (unintentional, remember?) throwing of the bat. After the play was completely over, the umpire should have called "Time," warned the BR who hit the triple for throwing the bat carelessly, and then warned his team that the next such occurrence would result in an ejection. No out can be called, because by rule (all codes), is not interference unless done intentionally and it actually interferes with the fielder's play, which in the original play, neither of which occurred.