不準確

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.

准 = 冫 + 隹 : Julian Giant Squid is just about to eat a popsicle inside of the encampment, but in the last moment a sparrow snatches the popsicle away and shouts that it is forbidden to eat inside of the encampment.

确 = 石 + 角 : Cupid found a huge horn in the elevator's bathroom. He knows that if it were genuine, it would be worth a fortune. He knows also that there is only one way to find out: by crashing a stone on it he'll find out whether it is the real stuff.