衆

众 = 人 + 从 : Neanderthal Man and Julian Giant Squid are helplessly watching engine's bathroom being flooded by a crowd of rubber chicken.

乑 = 𧰨 : The evil twin of the caterpillar (𧰨). Julian Giant Squid (zhu) sees the good and the evil caterpillar twins (𧰨 and 乑) standing side by side (乑) in the engine's bathroom ((e)ng4) and is astonished by how similar they look.

血 = 丶 + 皿 : Mnemonic symbol: blood transfusion.

Xu Xian hurt himself and needs to get a blood transfusion in the elevator's bathroom. He found a petal leaf as donor, which is bleeding droplets into a bowl; Xu Xian gets the blood from the bowl as infusion using some tubes.