The history of facial hair -- Mr. Potato Head -- Murphy beds -- How to get lost -- Mezcal -- John Frum and the Cargo Cults -- Backmasking -- Aging -- The history of income tax -- The pet rock -- Cyanide pills -- Do(ugh)nuts -- The Jersey devil -- Demolition derbies -- Kamikaze -- Trichotillomania and the BFRBs -- Trillionaires -- The SCRUM manifesto -- Roadies -- The Scotland Yard Crime Museum -- Jack Kevorkian -- Well-witching -- The first gun(s) -- Keeping up with the Joneses -- Dog smells -- The perfect Price is Right game -- Child prodigies -- Appendix. Stuff You Should Know podcast episodes.