Today being Cinco De Mayo, it is very important for all reference librarians to know the true story behind the "worm in the Tequila" myth, so when
you're doing shots behind the desk a curious patron stops by looking for help on the history of Mexican beverages, you can explain why there's no worm in his Tequila, and offer a shot of book on Mezcal instead.
The true history of the worm in the bottle.
"In 25 years we have never met a palenquero who has offered a sip of his mezcal with: a Worm, a Lime or Salt. In our experience the only use of the worm besides a marketing gimmick is to mask the chemical taste of poorly produced mezcal."