殺氣

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).

Mnemonic symbol: a balloon. The Queen of Hearts is disappointed by her balloons. She expected them to float upwards, but in the space station's bathroom, They float randomly in all directions.