Jesters of some sort have been around since ancient Egypt and China. Our modern clown was invented around 1800 and ever since they have been getting steadily creepier. Learn all about clowns in this classic episode.See omnystudio.com/listener for privacy information.

In 1973 a study was published in Science where psychologist David Rosenhan revealed he had duped hundreds of psychiatric workers by planting perfectly sane pseudopatients within their hospitals and every last one went unnoticed.See omnystudio.com/listener for privacy information.

Curse tablets are exactly what you think - tablets with curses inscribed on them. But what were they used for, and when did people do this? Hit play and those answers shall be revealed!See omnystudio.com/listener for privacy information.

You can uncross your legs you big babies. Getting a vasectomy isn’t bad at all – recovery time is a breeze, pain is minimal, and you can consider it a gift to your partner. Learn the real deal on vasectomies (and get 20% off with our code: STUFF).See omnystudio.com/listener for privacy information.

In 1943 Swiss chemist Albert Hofman discovered he'd created what may be the most potent hallucinogen known to humankind. Then he took a bike ride. Learn about the chemistry, neurology, history and cultural impact of LSD-25 in this classic episode.See omnystudio.com/listener for privacy information.