What I get from Joe Torre is the suspension was based on aggressively charging the ump while throwing the helmet in his direction (a foot or so away). There is no precedent.

The length of the suspension factored intent. Torre didn't think there was any intent on Lawries part with the helmet coming in contact with the umpire.

I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne