‘No Such Thing as a Fish’ is one of Tim Harford’s favorite podcasts and he was recently invited on as a guest. So here’s a chance to listen to the host of Cautionary Tales chat vital vitamins, stinging schemes, and the practice of pyrography.

Listen to more episodes from No Such Thing as a Fish wherever you get podcasts.

Cautionary Tales will return with the story the greatest photographic hoax in history next Friday.