Did you know that Opposite Day isn't a national holiday or even an unofficial holiday? That is an outrage. Silly little holidays are happening daily without fail, so why can't a day devoted to switcharoos get the 24 hours it deserves? My birthday is World Rabies Day , and that's a much lamer of holiday than Opposite Day could ever be. According to Wikipedia, it's a game played by children with no actual calendar date. If Opposite Day were real, then we adults wouldn't have to go to work that da…