"Mama shark, doo doo doo-doo doo-doo," Jungkook continues singing, bumping his hip against Yoongi as they walk, which might be more than a little obnoxious, but Jungkook finds that he doesn't mind. It isn't long before one of the kids nearest them picks up on the melody and follows along, her arms outstretched over her head, miming the image of a shark fin over her head.

Tempted though Jungkook is to break off and dance with her, he settles for making a face at her instead, puffing up his cheeks for the papa shark portion of the song and stamping his feet with a little more conviction. It sends her squealing and running off.

"Mm?" Jungkook mumbles, standing upright again and doing his best to recall the conversation. "Kelp — ah! Yeah, kelp. I guess coral works too. But then, you have to get into like, well all the coral in the world is starting to die because the planet's getting too hot, and that's — man, I don't know how you'd explain that to a kid."