抗壞血酸

抗 = 亢 + 扌 : After hours of creative thinking in Angwor Wat's bathroom and not coming up with anything, Karl Marx decides to fight his image of successful authorship and rips his turtleneck to pieces using two toy claws.

坏 = 不 + 土 : In the airplane's bathroom, there is a clear sign that it is forbidden to enter the room with dirty feet. Helga Horse is quite spoiled though, so she enters right after she went to the muddy stables and spreads dirt all around.

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.

酸 = 夋 + 酉 : The rooster (酉) and Susan Saint Bernard (su) where once friends, but recently they haven been fighting over a lover. Because they are both wuxia (夋) superheroes, they have been fighting for three days in front of the anthill (an1) without determining a winner. Finally they decide to settle their sour (酸) dispute and share a tart (酸) tarte to renew their friendship.