不見

不 = 丆 + 卜 : Bruno Bear (bu) is setting up a wind wheel (丆) with a voodoo staff (卜) in the space station's bathroom (Ø4). He also puts a "forbidden" sign (mnemonic symbol for 不) on it, to make clear that it may not (不) be stopped.

见 = ⺆ + 儿 : Joan of Arc (ji) set up a surveillance camera (mnemonic symbol for 见) in the anthill's bathroom (an4). With its help, she can see Sun Wu Kong (儿) stapling (儿) his hat to his head.