正中要害

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.

中 = 丨 + 口 : Mnemonic symbol: a dart board, because you always try to hit the center.

Julian Giant Squid (zhu-) is throwing dinosaur bones (丨) as darts on a dart board in front of the engine ((e)ng1). To make it a bit more difficult he's throwing mandarins (口) into the air as well and skewers them up right in the center (中 is a mandarin skewered on a dinosaur bone) in mid flight with the dinosaur bones. He's still able to consistently hit the center (中) of the dart board.

要 = 女 + 覀 : Bessie Coleman shows Maud Younger how to use a knuckle duster in the aorta's bathroom. She says it's very important and that Maud will have to get one herself.

害 = 宀 + 丰 + 口 : Mnemonic symbol: Calamity Jane.

Hamlet has just graduated from high school and his still wearing his graduation cap, but Calamity Jane locked him in a golden cage in the airplane's bathroom because she envies him so much. She even gave him no food so far and teases him with a mandarin.