斩
=
斤
+
车
:
Mnemonic symbol from 斩草除根: lawn mower. James II of England (zh) accidentally dropped bar bells (斤) onto the anthill's owner's cabriolet (车). The owner is mad as hell and wants to behead (斩) James II of England in the living room (an3) using a lawn mower (斩).
杀
=
乂
+
朩
:
Sherlock Holmes (sh) is messing around with a sewage pipe sticking out of the floor (朩) in front of the ashram (a1) using pliers (乂). To reduce (杀) the marks he left he is trying to rub them off with an eraser (杀).