防患于未然

防 = 方 + 阝 : Frankenstein's Monster accepted to work as the Pope's bodyguard inside the anglepod's kitchen. He protects the Pope by having him stay inside a protective square.

患 = 串 + 心 : Helga Horse eats a skewer in the anthill's bathroom, with a terrible outcome: after taking the first bite, she suffers from a heart attack.

于 = 亅 + 二 : Mnemonic symbol: prepositions (in, at, on, to, ...) are what glue the sentence together. Honey is as sticky as glue, so I'll represent 于 by a honey jar.

Yu the Great (于) was assigned to repair the electronics of the space station's kitchen (Ø2), but instead he was snacking honey from a honey jar (于). Unfortunately his capacitor (二) got stuck in the honey and now he has to use a crowbar (亅) to lever it out.

未 = 一 + 木 : Shortly after finishing a new installation in the Eiffel Tower's bathroom, Ai Weiwei is imprisoned by Willy Walrus, because—out of all places—Ai Weiwei put his new installation right into Willy Walrus's toilet. Ai Weiwei's installation is a Christmas tree with a tiny, slightly tilted flute on top. Ai Weiwei would really, really like to correct the tilted flute, but so far, Willy Walrus has not yet let him out.

然 = 灬 + 肰 : Robinson Crusoe is grilling some dog meat on his BBQ in the anthill's kitchen, but it's hard to do it correctly because of all the animal rights activists. They think it's not right to grill dog meat.