As anybody in the derby world will tell you, roller derby is 75% sport, 10% perspiration, and 15% beer. It’s what we drink to celebrate victories, to mourn losses, to wash down our ibuprofen, and it always tastes better in the shower before a game. Unfortunately, the rest of the world usually frowns upon our healthy drinking habit, with one exception: St. Patrick’s Day, when derby folks can go hard as fuck and face absolutely no repercussions.