率由旧章

率 = 冫 + 十 + 玄 : Sheldon Shrimp (shu) is surprised by a stream of lava (玄) rushing into the airplane's bathroom (ai4). He acts quickly (率) and jumps on a huge cross (十) to save himself. Then he continues to lead (率) the stream of lava around the cross by placing popsicles (冫) on the floor in just the right way, so that the lava passes his cross without melting it. He notices that the heat flow to either side of the cross corresponds to the golden ratio (率).

由 = 丨 + 曰 : Mnemonic symbol: 自由古巴， a cuba libre. The character 由 itself even looks like a cuba libre.

Maud Younger (y) is taking part in a charity auction in the outhouse's kitchen (ou2). She is auctioning the dinosaur bone (丨) next to her and is speaking into a microphone (曰). In the other hand she is holding a cuba libre (由), and she is already quite drunk.

旧 = 丨 + 日 : In the year 2076 Joan of Arc (ji) and the sun (日) meet again in the outhouse's bathroom (ou4). They are both very old (旧) and have to use dinosaur bones (丨) as crooks.

章 = 早 + 立 : Mnemonic symbol: a section sign. James II of England (zh) wakes up with a jolt as his alarm clock (早) goes off in front of the anglepod (ang1). Panicked he tries to smash it with a big section sign (章), but instead he just smashes the invaluable vase (早) next to it.