悶悶不樂

闷 = 心 + 门 : Mahatma Gandhi (m) lost his heart (心) when he accidentally dropped it through a trap door (门) in the floor of the encampment ((e)n4). As soon as the heart fell through, the door closed very tightly (闷) which makes Mahatma Gandhi quite depressed (闷).

不 = 丆 + 卜 : Bruno Bear (bu) is setting up a wind wheel (丆) with a voodoo staff (卜) in the space station's bathroom (Ø4). He also puts a "forbidden" sign (mnemonic symbol for 不) on it, to make clear that it may not (不) be stopped.

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.