踌躇不决

踌 = ⻊ + 寿 : Charlie Chaplin (ch) is about to step on a longevity peach bun (寿) in the outhouse's kitchen (ou2) with his cowboy boot (⻊), but he hesitates (踌) in the last moment.

躇 = ⻊ + 著 : Chantal Chicken (chu) is just about to step on important documents (著) with her cowboy boot (⻊) just inside the space station's entrance (Ø2), but in the last moment she hesitates (躇).

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.

决 = 冫 + 夬 : Just inside the elevator's kitchen, Zeus asks a crystal ball whether he should eat the popsicle he holds in his hand or not. The crystal ball keeps saying no, but because he definitely wants to eat hit he keeps asking again and again.