Currently if you kill the golem body too fast or too slow you can miss the loot from the arm which is kinda bad game design wise given you miss half the loot.
Either make it so if the golem body dies while he still have an arm, automatically make the arm also die and drop loot, or somehow guarantee that you can not kill the golem before the arm, force it to put down the arm at low HP and keep it stay down or something similar.
Ye