后悔莫及

后 = ⺁ + 𠮛 : Mnemonic symbol: Zenobia, Queen of Palmyra. Zenobia (后) and Hamlet (h) want to bake banana bread in the outhouse's bathroom (ou4), but they don't know how. Behind (后) a banana tree (⺁) they study a scroll (𠮛) on which the recipe is written.

悔 = 忄 + 每 : Helga Horse (hu) regrets (悔) having eaten that cake. In the Eiffel Tower (ei3) she punishes herself with a flail (忄) and by working out (每).

莫 = 艹 + 日 + 大 : Mnemonic symbol: 莫扎特, Mozart. Mozart (莫) is giving a concert in the observatory's bathroom (o4). He is sourroundes by sheets of artificial lawn (艹), and since there is none who (莫) is allowed to touch the lawn, it is guarded by a big robot (大). Mahatma Gandhi (m) is in the audience and in the middle of the concert he jumps on the lawn to protest against the sun (日), who is also in the audience, because the sun is responsible for draughts which threaten the farmers. In the end the robot has to carry Gandhi away.

及 = ㇏ + 乃 : Mnemonic symbol: Chinese General 宇文化及 (yu3 wen2 hua4 ji2) from the seventh century.

及 = ㇏ + 乃 : Just inside the space station's entrance a poltergeist is harassing Joan of Arc and Yuwen Huaji by pointing with his fingers at them.