技術所限

技 = 扌 + 支 : Joan of Arc (ji) is gaming in the space station's bathroom (Ø4). Although she types on the keyboard using a branch (支) and moves the mouse using a toy claw (扌), she still has enough skill (技) to own everyone.

术 = 丶 + 木 : Mnemonic symbol from 手术: surgeon

术 = 丶 + 木 : In the space station's bathroom the surgeon wants to tickle Sheldon Shrimp with a petal leaf, but Sheldon thinks it's a trap and he wants to cut him open, so he hides behind a Christmas tree.

所 = 戶 + 斤 : Susan Saint Bernard and her whole family are weight lifting in the place of the observatory. They are all together lifting one barbell.

限 = 艮 + 阝 : Marie Curie (xi) caught the pope (阝) munching chewing gum (艮) in the anthill's bathroom (an4). Marie hates it when someone puts their chewing gum just anywhere in the room, so she marks a confined space with red and white tape and sends the pope to stay within the limits (限) while he is chewing.