樂在其中

乐 = ⺁ + 朩 : Mnemonic symbol: a cheerleader

乐 = ⺁ + 朩 : In the elevator's bathroom, the cheerleader is beating Lancelot on the head with a banana tree just when Lancelot isn't watching, and laughing at him cheerfully. The cheerleader sneaked up on Lancelot by popping out of a sewage pipe.

乐 = ⺁ + 朩 : Mnemonic symbol: a cheerleader

乐 = ⺁ + 朩 : In the elevator's bathroom, the cheerleader is beating Lancelot on the head with a banana tree just when Lancelot isn't watching, and laughing at him cheerfully. The cheerleader sneaked up on Lancelot by popping out of a sewage pipe.

在 = 一 + 亻 + 土 : Zorro (z) and Rosa Luxemburg (亻) exist (在) in the airplane's bathroom (ai4). Rosa is in the middle of balancing a flute (一) on her head and on a pile of clay (土). Zorro uses his rapier to inscribe "Z" into the flute, so as to mark that the pronunciation of "在" begins with "z".

其 = 目 + 八 : Looks like a watchtower. The Queen of Hearts is on lookout on the watchtower just inside the space station's entrance. The Eye of Providence helps her to look out for intruders. They also spread some eight balls for possible intruders to trip on.

中 = 丨 + 口 : Mnemonic symbol: a dart board, because you always try to hit the center.

Julian Giant Squid (zhu-) is throwing dinosaur bones (丨) as darts on a dart board in front of the engine ((e)ng1). To make it a bit more difficult he's throwing mandarins (口) into the air as well and skewers them up right in the center (中 is a mandarin skewered on a dinosaur bone) in mid flight with the dinosaur bones. He's still able to consistently hit the center (中) of the dart board.