棄世

弃 = 亠 + 弁 : The Queen of Hearts (qi) made a vow to not wear any hats anymore in the space station's bathroom (Ø4). She thus throws away (弃) her caps (弁) and her berets (亠) by throwing it out of the window into outer space.

世 = 廿 + L : Mnemonic symbol: the WTO or WHO.

Sherlock Holmes (sh) is cleaning a flower pot (廿) under the shower of the space station's bathroom (Ø4) with a loofah (L) because he didn't quite understand a poster next to the shower from the WHO (世) explaining dangers arising from different germs.

In this case, L is for loofah.