不断

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.

断 = 乚 + 斤 + 米 : Doggy Dog is working out in the anthill's bathroom. He uses two big barbells, but they are not enough: He attached shovels to the barbells and sacks of rice on them. The load is too much though: Just as he is pushing the barbells up the shafts of the shovels snap.