The popular MBC entertainment program "Infinite Challenge" member Jung Joon Ha mistakenly melted his ice with salt, and regretted his school years when he did not study much.

On the most recent episode of the MBC entertainment programs "Infinite Challenge," which aired on August 9, 2014, the Infinite Challenge members Noh Hong Chul, Ha Ha, Park Myung Soo, Yoo Jae Suk, Jung Joon Ha, and Jung Hyung Don challenged themselves to protect their blocks of ice from melting in hot, humid weather.

On this day's episode, the members protected their ice using any methods they could. Infinite Challenge member Jung Joon Ha said, "I need salt. Salt makes ice melt less." However, after walking with his block of ice covered in salt for a few minutes, he realized that salt actually melts ice and said, "This is why I should have studied in school," making people laugh. In related news, on the most recent episode of the MBC entertainment program "Infinite Challenge," Infinite Challenge members played a survival game protecting their own block of ice from melting in hot, humid weather.