Candlestick Park, 1965
Juan Marichal attacks John Roseboro with a bat.
Back in the days when the Giants-Dodgers rivalry was baseball's most heated, Marichal became so enraged with Roseboro that he attacked the catcher and cracked his bat over Roseboro's head. Can you imagine the reaction had that happened today? Marichal would be sent straight to prison and Twitter would collapse.