脲

尿 = 尸 + 水 : Nefertiti (ni) is drinking from a water fountain (水) in the aorta's bathroom (ao4), but she doesn't notice that at the same time a ghost (尸) is peeing (尿) into the water fountain.

月 = ⺆ + 二 : Yu the Great (yu) is modelling a moon (月) in the elevator's bathroom (e4). He uses a stapler (⺆) to staple a lot of capacitors (二) together to form a moon shape, while the real moon is sitting for him.