顺序

顺 = 川 + 页 : Sheldon Shrimp (shu) witnesses a creek (川) forming in the encampment's bathroom ((e)n4), and subsequently a paper (页) boat floating by. Sheldon recognizes this omen and knows that he has to follow (顺) his fate.

序 = 予 + 广 : Due to an emergency Xu Xian (xu) and Zai Yu (予) both have to leave the space station from the bathroom (Ø4) and parachute (广) back to earth. They just cannot decide on the sequence (序) of who's going first.