Pinyin initial: "r"

日 = 囗 + 一 : Robinson Crusoe (r) is hiding from the sun (日) in an enclosure (囗) full of flutes (一) in the space station's bathroom (Ø4).

人 = 丿 + ㇏ : Mnemonic symbol: Neanderthal Man (人). Robinson Crusoe (r-) is looking for snacks in the encampment's kitchen (-en2) when he suddenly spots Neanderthal Man (人). Neanderthal Man offers him a banana (丿), but Robinson Crusoe doesn't trust the present and pokes it with a finger (㇏).

亻 = 丿 + 丨 : Mnemonic symbol: Rosa Luxemburg. She's quite radical, and her name starts with "r", just like "ren2". Also, 亻appears at the left-hand side of characters, and Rosa is a leftist as well.

Robinson Crusoe (r) and Rosa Luxemburg (亻) are having their favorite snacks in the encampment's kitchen: Rosa is eating a banana (丿) and Robinson is eating a dinosaur bone (丨).

冉 = ⺆ + 土 : 冉冉 means "soft" as well as "gradually", so I'll represent 冉 by snail mail.

冉 = ⺆ + 土 : Robinson Crusoe drank too much in the anthill, so he's unable to receive the letter of dirt that he gets by snail mail. The snail wants to deliver it anyway, so she just staples it to the table next to Robinson.

认 = 人 + 讠 : Robinson Crusoe is lost in the encampment's bathroom. He doesn't know anyone, and he doesn't recognize the environment! At first, he turns to an advertising column, but it doesn't tell him anything useful. But fortunately, Neanderthal Man comes in, instantly recognizes Robinson Crusoe, and tells him where he is.

热 = 执 + 灬 : Robinson Crusoe wants to heat himself up in the elevator's bathroom, so he burns his good-for-nothing grilling license on a grill to ignite a sizeable flame.

肉 = 冂 + 人 + 人 : Robinson Crusoe (r) and two Neanderthal Men (人人) are having a picnic in the outhouse's bathroom (ou4). They are sitting on a huge map (冂) and each of them devours a big, bloody piece of meat (肉).

壬 = 丿 + 士 : Symbol: a cat o' nine tails. Robinson Crusoe wants to propose to the bachelor just inside the encampment's kitchen. To Robinson's despair, just as he presents his banana, a cat o' nine tails jumps between the two and eats the banana.

肰 = 月 + 犬 : In the anthill's kitchen, Robinson Crusoe serves the St Bernard Dog Robinson's favourite dish from when he was stranded on that island. He serves it in a moon-shaped bowl, and it it some kind of meat, which the dog happily eats. He would be shocked to find out that it's dog meat he's eating.

然 = 灬 + 肰 : Robinson Crusoe is grilling some dog meat on his BBQ in the anthill's kitchen, but it's hard to do it correctly because of all the animal rights activists. They think it's not right to grill dog meat.

让 = 上 + 讠 : Robinson Crusoe badly needs to use anglepod's bathroom, but currently it's under renovation. On the toilet seats there's a sign saying "上" and pointing to an advertising column, so Robinson thinks that they just want him to sit on top of the advertising column, and indeed there's a hole at the top of the column.

禸 = 冂 + 厶 : Robinson Crusoe spent the whole day following a map around in the outhouse's kitchen, expecting to find an invaluable treasure. Instead he just found a fake nose, and infuriated, he tramples on this damned map.

任 = 亻 + 壬 : An assignment written down on a heap of paper. Robinson Crusoe agreed to take care of Rosa Luxemburg's cat o' nine tails for a few days. Rosa wrote down his assignment on paper and handles him the heap in the encampment's bathroom.