燃
=
火
+
然
:
Robinson Crusoe (r) is igniting (燃) a fire (火) in the anthill's kitchen (an2) hoping (燃) to cook his dinner there, but soon people come over and tell him it's not right (然) to do so because of the potential carbon monoxide poisoning.
耗
=
毛
+
耒
:
Hamlet (h) got the task to drive a plow (耒) through a lot of hair (毛) in the aorta's bathroom (ao4). He thinks that it is just a waste (耗) of gasoline (油耗) because it requires a lot of time and energy (耗时耗力), but he does it anyway.