缺血

缺 = 夬 + 缶 : Cupid (qu) has almost all pottery pots (缶) of a collection of twelve, but the seventh piece is missing (缺). He asks a crystal ball (夬) I'm front of the elevator (e1): where is the missing piece? The crystal ball replies that he smashed it when he came back totally drunk the night before.

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.