Yoon Si Yoon had his first day on '1 Night 2 Days' on the 1st, but he adjusted to the show without any problems!
Among the many hilarious comments he made, a particular 19+ comment made viewers, the rest of the members, and the filming staff crack up on the spot. The original members had to pack for Yoon Si Yoon in under 10 minutes while trying to get him ready. While he was checking what they'd packed for him, they pulled out two pairs of boxer briefs. One he explained was a gift and that he'd never worn it before. Cha Tae Hyun pulled out the second and commented, "This is loose, so it's not new."
To this, Yoon Si Yoon replied, "The front is especially stretched out, right?" The comment caught the other members off guard and everyone cracked up, including even the staff. Cha Tae Hyun complained, "This kid is weird! He keeps boasting about himself." Kim Jong Min said, "Do you think we don't have one?", Cha Tae Hyun added, "Should we stretch ours, too?", and Kim Jun Ho concluded with, "Mine are even torn!"
Check out the hilarious segment above.