血肉

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.

肉 = 冂 + 人 + 人 : Robinson Crusoe (r) and two Neanderthal Men (人人) are having a picnic in the outhouse's bathroom (ou4). They are sitting on a huge map (冂) and each of them devours a big, bloody piece of meat (肉).