隘谷

隘 = 益 + 阝 : In order to use the airplane's bathroom (ai4) you have to pass a narrow pass (隘) of a certain type of ginger (益). Because they want to go in different directions but cannot pass (隘) each other, Albert Einstein (Ø) and the Pope (阝) are in distress (隘).

谷 = 人 + 八 + 口 : Mnemonic symbol: popcorn.

Gitta Giraffe (gu) conducts an experiment in the space station's living room (Ø3). She shows Neanderthal Man (人) three things: a mandarin (口), popcorn (谷), and an eight-ball (八), and records how much he likes to eat each of these. Neanderthal Man thinks that the eight-ball is a little crunchy.