疥

介 = 人 + 丿 + 丨 : Mnemonic symbol: 介 looks like a rocket 🚀. Neanderthal Man (人) and Joan of Arc (ji) are preparing a rocket (介) for its start. Between (介) the layers of the outer shell (介) they are stuffing bananas (丿) and dinosaur bones (丨).

疒 = 亠 + 广 : Napoleon started a war, and his first act is to parachute into the elevator's bathroom, wearing his military beret and all. He's lucky to have landed in the bathroom because unfortunately he's sick, with a colorful rash all about his skin and the urge to puke.