齿
=
止
+
凵
+
人
:
Charlie Chaplin (ch) has an aching tooth (齿), and Neanderthal Man (人) is about to help him take it out using an electrical barrier (止) in the space station (Ø3). They attached the barrier to the tooth and as Neanderthal Man will plug it into the receptacle (凵), the barrier will pull out the tooth.
The apocalypse has come, and archangel Gabriel (列) came down from heaven with his list (列) of people who are accepted. In the elevator's bathroom (e4) he tells Li Qingzhao (li) that she's on his list, and he tells the wicked witch (歹) that she's not. The wicked witch freaks out and takes Li Qingzhao as her hostage holding a kitchen knife (刂) to Qingzhao's throat.
straight / upright / proper / main / principal / to correct / to rectify / exactly / just (at that time) / right (in that place) / (math.) positive
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.