默
=
犬
+
黑
:
Mahatma Gandhi (m) and the Saint Bernhard dog (犬) are training hard in the observatory's bathroom (o4). They are taking turns of making awful noises on a blackboard (黑), and they train to remain silent (默) instead of screaming out loud.
示
=
二
+
小
:
A standard or guidon, as used in the military. Sherlock Holmes tries out his new guidon in the space station's bathroom. The standard features a capacitor and a daisy.