James O'Brien's Mystery Hour James O'Brien's Mystery Hour

Isn't this a motoring question?

Oct 15, 2026 · 47m

Summary

James O'Brien hosts Mystery Hour, fielding listener questions ranging from why razors are sharpened on leather strops to the origin of "Wendy houses." Callers also debate the purpose of pedestrian crossing buttons, the role of pheromones in attraction without smell, and the history behind Roman numeral clocks. The episode features humorous banter, including a correction on Ewok origins and a discussion on the etymology of "John Doe," as O'Brien seeks answers to these everyday curiosities.

Topics discussed

Intro, format explanation, and electric car anecdote Listener message regarding Reform UK and racism Sharpening chisels and barbering ears Origin of the term 'Wendy house' Do pedestrian crossing buttons actually work? Pheromones and attraction without a sense of smell Origin of the names John Doe and Joe Bloggs Why Roman numeral IV is used on clocks Detailed answer on sharpening tools and stropping Defining general knowledge vs specialist knowledge Why fire alarms are called 'bells' and name trends History of Roman numerals and clock faces Listener background in medieval history reenactment Police officer explains pedestrian button mechanics Answer on the origin of the Wendy house Scientific answer on human pheromones Sign-off
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