Crown Prince Sado was locked in a rice chest by his own father for 8 days. That's not a metaphor.

King Yeongjo ordered his own son sealed inside a wooden rice chest in the middle of July 1762. Eight days. In the Korean summer heat. Sado was 27. The official reason was "madness" but historians still debate whether it was mental illness, political maneuvering, or just the most toxic father-son relationship in Korean history. Yeongjo reportedly wept while giving the order. His grandson Jeongjo spent his entire reign trying to restore his father's honor. Joseon family dynamics were absolutely unhinged.