正妹

正 = 一 + 止 : Mnemonic symbol: a stick-figure with straight lines. James II of England (zh) really has to use the engine's bathroom ((e)ng4), but there's a stick-figure (正) blocking the stalls with a barrier (止). The stick-figure measures with a flute (一) whether James is tall enough to go. James stands very straight (正) to make himself as tall as possible.

妹 = 女 + 未 : Bessie Coleman, (女) her younger sister (妹), Mahatma Gandhi (m) and Ai Weiwei (未) are playing a game of Schafkopf in the Eiffel Tower's bathroom (ei4). Somehow Bessie and her sister always end up in the same team, which makes Mahatma Gandhi and Ai Weiwei very suspicious.