荡
=
艹
+
汤
:
Don Quixote (d) messed up his artificial lawn (艹) with soup (汤) in the anglepod's bathroom (ang4). After washing (荡) and shaking (荡) the lawn he checks with an oscilloscope (荡) to see if there are still soup particles left on the lawn.
盍
=
去
+
皿
:
Mnemonic symbol: to make a list of pros and cons.
Hamlet (h) is thinking about smashing a shallow bowl (皿) with a concrete barrel (去) in the elevator's kitchen (e2). He thinks "why not" (盍), and decides to make a list of pros and cons (盍) first.