故訓

故 = 古 + 攵 : Mnemonic symbol: This character only appears in 做, so we don't need a strong mnemonic symbol. We should be able to refer to 故 when we think of 故事 or 故意. Because it fits nicely to its components, I'll think of it as in the meaning of 故墓, an old grave.

故 = 古 + 攵 : There is an ancient cloister in the space station's bathroom, and Gitta Giraffe once heard a story from her fellow astronauts that there's an old tomb inside with lots of treasure. One day she can't hold herself back anymore and deliberately breaks the cloister open using a sledgehammer.

训 = 川 + 讠 : Lately the water level has risen and now a river (川) is flowing through the encampment's bathroom ((e)n4). Xu Xian (xu) takes this opportunity to set up an advertising column (讠) and advertise his swimming instruction courses (训).