血庫

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.

库 = 广 + 车 : Karl Koala (ku) ordered a new cabriolet (车), and it's going to be delivered to his garage (库) in the space station's bathroom (Ø4). The new cabriolet is being thrown off suspended from a parachute (广), but unfortunately it hits the garage with Karl's old car and smashes it.