不恥下問

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.

耻 = 止 + 耳 : Charlie Chaplin (ch) is disgraced (耻) by hearing what is happening on earth, so in the space station (Ø3) he decides to put a barrier (止) into each of his ears (耳) so that he won't have to listen anymore.

下 = 一 + 卜 : Mnemonic symbol: from the up/down logic, and a little bit the shape of the character, a ladder.

Xi Shi (xi) is on a retreat in the ashram. Using a voodoo staff (卜), she divined that next (下) week she'll have to play the flute (一) sixteen hours per day. Because she hates playing the flute, she climbs over the ashram's bathroom (a4) wall using a ladder (下) to escape.

问 = 口 + 门 : Willy Walrus sees a mouthwatering mandarin hanging over a door in the floor of the encampment's bathroom. He asks himself: "is it a trap?"