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Holiday that takes place on April 3rd of every year, or 3 days later if the holiday falls on a weekend. On this day, if an IT or similar worker in the high-technology industry has been good all year, the cheese weasel(not to be confused with the Wisconsin party band "The Cheese Weasels") will leave a piece of cheese(originally a slice of Kraft American, but has since become more commonplace to use any cheese) under the keyboard for said worker to find in the morning. Although the holiday's origin is murky, its tradition can be traced as far back as 1992 when a weasel was spotted carrying a Kraft Single. As Hallmark and The American Dairy Association are unaware of this holiday, it remains mostly non-commercial and is less well known than other mascot-visits-all-the-good-boys-and-girls holidays. Cheese weasel day also has its own song (which consequently has no known tune). Official site is here: http://cheeseweaselday.com/
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