Namjoon: Jungkook, you gain a lot of weight if you eat and then lie down.
Jungkook: Yes~
-A short while later-
Namjoon: ...What are you doing?^^
Jungkook: If you eat and then lie down, you gain weight, so lie down.
I'm going to eat!
Namjoon: (Speechless at the brilliant idea)