側壁

侧 = 亻 + 则 : Wu Zetian (则) and the King of Chu (c) got married in the elevator's bathroom (e4) and after the ceremony they are so drunk that they have to lean against (侧) Rosa Luxemburg (亻) to not fall down.

壁 = 土 + 辟 : Brunhilde (bi) was checking out the safety of the space station and found that the bathroom (Ø4) is a weak spot in the defence line if there should be any attacker. Thus, she decided to build a rampart (壁). She cannot do it alone though, so she asked the jade dragon (辟) for help. Together, they build the rampart out of earth (土). In this way, they will be able to fend off (辟) any intruder.