泄
=
世
+
氵
:
Marie Curie (xi) is putting up a poster by the WHO (世) in the elevator's bathroom (e4). It is alerting everyone that when filling your water bottle (氵) from the tap not a single drop is allowed to leak (泄) through the closed bottle.
欲
=
欠
+
谷
:
Yu the Great (yu) suddenly feels a strong desire (欲) and appetite (欲) to eat popcorn (谷). As she opens the secret drawer in the space station's bathroom (Ø4) though she finds her popcorn gone and instead an IOU note (欠).