放血

放 = 攵 + 方 : In the anglepod's bathroom, Frankenstein's monster crushes a square to pieces using a sledgehammer. He puts the pieces into the toilet and releases them afterwards by flushing it.

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.