棄惡從善

弃 = 亠 + 弁 : The Queen of Hearts (qi) made a vow to not wear any hats anymore in the space station's bathroom (Ø4). She thus throws away (弃) her caps (弁) and her berets (亠) by throwing it out of the window into outer space.

恶 = 亚 + 心 : Albert Einstein ate a big plate of mapo doufu, but it already went bad two weeks before. Now he pukes and pukes in the elevator's bathroom and, with a broken heart, wonders how one dish can be so fierce.

从 = 人 : Mnemonic symbol: 从 looks like the legs of a rubber chicken. Two Neanderthal Men (人) are playing a game with Kitty Cat (cu) in the engine's kitchen ((e)ng2). They stand in a line and let Kitty Cat pass through (从) the tunnel formed by their legs by teasing her with a rubber chicken (从).

善 = 业 + 口 + 羊 : Mnemonic symbol: a good book about etiquette.

Sherlock Holmes (sh) finds a bullfrog (业) and a sheep (羊) fighting viciously over a mandarin (口) in the anthill's bathroom (an4). He finds this behaviour unbearable and starts to read Emily Post to them to teach them some manners (善).