校
=
交
+
木
:
In the aorta's bathroom, Marie Curie and Linus Pauling find their Christmas presents of a lifetime under a Christmas tree. They are given the gift of being able to go to school so that they can become accomplished scientists.
to inspect / to review / to read / to peruse / to go through / to experience
阅
=
兑
+
门
:
Yu the Great (yu) has to inspect (阅) a cash exchange booth (兑) in the elevator's bathroom (e4). He finds lots of problems and just as he is reading (阅) the rights to the owner, the owner opens a trap door (门) just below his feet to make him disappear.