A weekly show where knowledge junkies get their fix of trivia-tastic information. This week, John takes a look at the origin of some common superstitions, such as a black cat crossing your path, throwing salt over your left shoulder, and walking under a ladder. \r
\r
Mental Floss Video on Twitter: \r
\r
Select Images and Footage provided by Shutterstock: \r
\r
----\r
Website: \r
Twitter: \r
Facebook: \r
Store: (enter promo code: YoutubeFlossers for 15% off!)