視界

视 = 礻 + 见 : Sherlock Holmes prepared a trap in the space station's bathroom. He knows that the murderer will pass by there and set up a lot of surveillance cameras to film him. Additionally he lingers around disguised as a monk in a monk's cowl to look at and observe him personally.

界 = 介 + 田 : Joan of Arc wants to leave this world and sets up a rocket launch field in the elevator's bathroom. The field looks like a normal crop field, except that there's a rocket in the middle and that the Joan of Arc marked the boundary with white and red tape.