市淨率

市 = 亠 + 巾 : Mnemonic symbol: a supermarket.

Sherlock Holmes (sh) started a supermarket (市) in the space station's bathroom (Ø4), but all he has for sale right now are berets (亠) and towels (巾). He should have opened it at the beach!

净 = 争 + 冫 : The grim reaper (争) is very annoyed by Joan of Arc (ji) eating popsicle after popsicle (冫) in the engine's bathroom ((e)ng4). She does not take care at all and repeatedly messes up the floor which the grim reaper has to clean (净) again and again.

率 = 冫 + 十 + 玄 : Sheldon Shrimp (shu) is surprised by a stream of lava (玄) rushing into the airplane's bathroom (ai4). He acts quickly (率) and jumps on a huge cross (十) to save himself. Then he continues to lead (率) the stream of lava around the cross by placing popsicles (冫) on the floor in just the right way, so that the lava passes his cross without melting it. He notices that the heat flow to either side of the cross corresponds to the golden ratio (率).