己巳

This character looks like a butcher's hook. In the space station, Joan of Arc wants to conduct an experiment about a sixth order chaotic pendulum. First she hooks a butcher's hook to a sickle, then sticks the sickle's end into a flute, and finally hooks the handle of a shovel into the last hole of the flute. She then swings the chaotic pendulum to observe its behaviour.

巳 = 乚 + 口 : A snake. Socrates is terribly afraid of a snake in the space station's bathroom, and he tries to defend himself with a shovel. However the snake already ate a mandarin, and Sokrates is next.