This is a bit of a hard topic to wrap your head around, but that's kind of the nature of 'unwritten' rules. Players can make them up as they go like Brian McCann and Jonathan Papelbon do. Lets try to help refine the image of unwritten rules with a vote on who the biggest offender was this season:
Joey Bats' bat flip
Jose Bautista had the ultimate bat flip against the Rangers in game five of the ALDS, after he hit a 3-run home run to put the Jays in front. Sure, it was more like a bat chunk but we love it all the same.
Cubs making the playoffs
The loveable losers no more. The Chicago Cubs reached the postseason for the first time since 2008 under new manager Joe Maddon. It doesn't feel right.
Jose Tabata elbow
Jose Tabata sticking out his elbow to break up Max Scherzer's perfect game bid.
At what point is Bryce Harper not a rookie anymore? I thought that 2013 after his RoY award season.