Baseball never fails to amuse me..
More great stuff about violence and baseball from ESPN. They have a story where they pick the greatest manager meltdowns, and former Yankees skipper Billy Martin was highlighted:

Billy Martin punches out marshmallow salesman
Martin fought with umpires, George Steinbrenner, Reggie Jackson, pitchers (Dave Boswell and Ed Whitson), two traveling secretaries, at least one cab driver, two bouncers at a topless bar, a sportswriter and one fan outside Tiger Stadium. But his biggest meltdown came in 1979 when he punched out a marshmallow salesman named Joseph Cooper, which led to his getting fired as Yankee manager.