呆若木雞

呆 = 口 + 木 : The fool wants to make fun of Don Quixote in front of the airplane. To fool him, he set up a Christmas tree to look like a huge animal by putting a mandarin on top which looks like the head of the animal. Don Quixote thinks he met his arch enemy and starts to charge the construction, much to the fool's delight.

若 = 艹 + 右 : Mnemonic symbol: a wooden chicken as in 呆若木鸡, "dumb as a wooden chicken".

A nazi wants to beat up a wooden chicken in the observatory's bathroom for being different, but just as he charges across a sheet of artificial lawn Rachel Rhinoceros pulls she sheet from under his feet and lets him topple head-first to the ground. She thinks that the nazi is truly as dumb as a wooden chicken.

木 = 八 + 十 : Mnemonic symbol: a Christmas tree. Malte Monkey is putting up a Christmas tree (木) in the bathroom of the space station (Ø4). He's using a cross (十) as a base to put the tree on, and decorates the tree with eight-balls (八).

鸡 = 又 + 鸟 : Maud Younger (y) is going between a boxing (又) fight between a turkey (鸟) and a chicken (鸡) in front of the space station (Ø1).